Tingling all over his body; body tingles; May have lost weight; Wheezing sound whenever he breathes; Feeling numb; Feeling weak; no energy; Hands are shaking; Electrolytes were out of whack; electrolytes were too low; Phosphorus level was too low; Throwing up; vomiting; Vertigo; head was spinning; looked like the building was going up and down; vision was spinning; Fell three times; Face pale yellowish; Feel like going to pass out; Nausea; Felt there is pinching on left side of his chest; Heavy sweating (sweating all over his body); Head felt heavier; head was heavy in the front side of his head, not in the back; Feeling hot; 99.9 degrees body temperature; pre fever; Head felt a lttle dizzy; no control to his body like he was going to faint; Arm soreness; sore arm; Headache; it is only a little bit of pain; frontal headache; head is hurting; This is a spontaneous report from a contactable consumer (patient). A 36-year-old male patient received the first dose of BNT162B2 (PFIZER-BIONTECH COVID-19 VACCINE; Lot Number was unclear and reported as either ER8727 or ED8727), via an unspecified route of administration, on 23Mar2021, at a single dose, for COVID-19 immunization. The patient's medical history included asthma. The patient's concomitant medication included an unspecified inhaler. The patient was healthy. He has asthma, but other than that he has no health issues. He has never been hospitalized. The patient was calling to share his side effects after receiving the vaccine. He took the vaccine because it has been recommended. Most importantly, he took it for his elderly parents. He does not want to hurt them. He wants to help the community. The pharmacist told him he needed to call and report, so he googled Pfizer's phone number. On Tuesday (23Mar2021), the patient received his first dose of the COVID-19 vaccine. At first, he felt nothing. The patient's head felt a little dizzy (clarifies that it is a heavy feeling) and had a little bit of arm soreness at night (resolved about a day and a half later), but he could not complain. When the patient had the first dose, he experienced headache and sore arm the night on 23Mar2021. After the first dose, his head felt nothing like the day he went to the emergency room. He would say it was maybe 10% of the day he went to the emergency room. The next day (24Mar2021) in the morning, the patient experienced heavy sweating (sweating all over his body), feeling hot, headache, 99.9 degrees (also reported as 9.8) body temperature, and more pain on the arm. On the morning of 24Mar2021, the patient's head felt heavier. He heard people get chills, he did not get chills. He checked his temperature and it was 99.9 degrees. The patient considers that a pre fever, anything over 100 degrees is a fever to him. Sweating all over his body has gotten better. But it comes back from time to time, along with tingling all over his body (unspecified date). His body tingles, he sweats a little bit and then it goes away. His body tingling and sweating go back to back. Time passed by two days and nothing. On the sixth day (29Mar2021), the patient's mother had a doctor's appointment. After the patient got home from taking his mother to the doctor, he started sweating all over his body (started sweating again). His head was heavy (head is a bit heavy again), but not painful. It is heavy in the front side of his head, not in the back. It (head) is only a little bit of pain. He feels like his brain is going to come out of the front of his head. He started throwing up as soon as he got home. He got vertigo. He was running through the house, trying to make it to the bathroom and he fell three times (before he went to the emergency room). His head was spinning, and he could not open his eyes. The patient clarified that he could open up his eyes, but he did not want too. It looked like the building was going up and down. On 29Mar2021, the patient's face was pale yellowish, feel like going to pass out, time to time nausea and vomiting, vertigo, vision was spinning, tingling sensation, no control to his body like he was going to faint, vomited a total of 3 times, felt there is pinching on left side of his chest (the left side of his chest was pinching in the emergency room), and frontal headache. He felt like everything around him was spinning. The patient took meclizine for vertigo and medication for vomiting. The patient's father has vertigo, so his father gave him some meclizine for his vertigo. The patient also took ondansetron (ZOFRAN). The patient's family called the hotline and took him to the emergency room (ER). He has not fell again. He vomited three times, and then another in the ambulance, for a total of four times. When he got to the hospital, they started treating him. When he went to the emergency room, he did not open his eyes, and was talking with his eyes closed. All of his symptoms happened at the same time, when he came home from his mother's doctor appointment. The doctor at the emergency room told him that his electrolytes were out of whack, and that his phosphorus level was too low. They gave him some sodium sulfate right away. The doctor recommended that he stay overnight. The patient did not want to stay overnight because his parents are elderly, and he takes care of them. The doctor told him since he was not willing to stay, to go home and drink a lot of water. Per laboratory works done on 29Mar2021, the patient's phosphorous and electrolytes were too low, so they gave him saline and sodium phosphate for management. Also, the patient had abdominal and heart X-ray and computerized tomography (CT) scan done and everything came normal. Also, both X-rays came back clear. The patient had no diarrhea. Heaviness of head started feeling better after his emergency room visit on 29Mar2021. Around 02Apr2021 or 03Apr2021 is whenever it started feeling better. It comes back, and he gets scared. On 30Mar2021, the patient was almost improving and was advised to drink lots of fluids. Every now and then patient was feeling weak and head is hurting, hands are shaking on 30Mar2021. Every single day, he feels dizzy, weak and tingles all over his body. When the patient went to the emergency room, the doctor could not tell him what caused his symptoms. The doctor told him that it could possibly be because of the vaccine. He has never felt like this in his life. He has never fell in his life. He felt hopeless and was crying. He was worried about his elderly parents, and who would take care of them. The patient's second dose of the COVID-19 vaccine is due 13Apr2021. He is debating on whether to take it or not. He cannot afford to take it if it is going to make him feel worse. He has read that the second dose of the COVID-19 vaccine makes people feel worse. He is scared. He is asking if he should get the second dose of the COVID-19 vaccine. Within one week (unspecified date), he may have lost weight. The patient has to use his inhaler more now as he has a wheezing sound whenever he breathes. He has been using his inhaler more often, whenever he starts wheezing. He always feels like his whole body is tingling. He has no energy. He has only visited this doctor once. His long-term primary care physician is not practicing anymore, he thinks that he may have lost his license. It is hard for him to get an appointment with his primary care doctor since the pandemic. The patient is going to try to see his doctor through tele health. The emergency room doctor recommended that he follow up with a neurologist. The patient was advised to go to a neurologist. The patient reported these symptoms as side effects and asked how long the symptoms last. At the time of reporting, the patient currently still has that nausea and vomiting feeling, but it is better; and he feels heavy (pertaining to vertigo). If he starts to get vertigo again, he knows he will throw up. He can feel whenever the vertigo is coming, he begins to feel like the floor is moving. He can be standing still quietly, and the floor will start moving. The pharmacist told him to call Pfizer and share what happened to him. Since he took the first dose of the Pfizer COVID-19 vaccine, he spoke to the pharmacist. He was thinking of taking another company's vaccine of one shot. But they did not offer it in his area. The patient read that the first dose of the Pfizer COVID-19 vaccine gives him about 50-60% immunity. The patient was asking if he can take the other company's vaccine. The patient should have taken the other company's vaccine because it would have been one shot and done. He is nervous about taking the second dose of the Pfizer COVID-19 vaccine. He wishes he would have taken the other company's one shot because then he would not have to worry about having symptoms again. The patient's father received his second vaccine today. He asked the pharmacist there the same questions. He is still confused about if he is going to take the second dose of the COVID-19 vaccine. He cannot explain his symptoms. He can handle pain, but he cannot handle, vertigo, throwing up, and feeling numb (as reported; unspecified date). He feels like he had symptoms that people 90 and older should have. He kept falling. The patient further asked if he could take another company's COVID-19 vaccine as his second dose. Also, if it was okay if he was scheduled to get the second dose 4 weeks after the first dose. Lastly, if the company thinks that he is eligible for the second dose of the Pfizer COVID-19 vaccine despite these symptoms. The patient recovered from "Arm soreness; sore arm" on 25Mar2021; and from "Fell three times" on 29Mar2021. The patient was recovering from "Heavy sweating (sweating all over his body)", "Head felt heavier; head was heavy in the front side of his head, not in the back", "Throwing up; vomiting", and "Nausea". The outcome of the remaining events was unknown.  Information about lot number and expiration date for the suspect product will be requested in follow-up attempts.