Feeling like maybe there is something wrong with her spleen; The pain is in the left side of the back kind of by the lungs; She has been sick; Her mental status was also affected; What scared her was not feeling like she was getting enough oxygen; Nausea; Body pain/flu-like body pain in her muscles over her shoulders; Out of it; Pain in her back where her lungs are; Problems breathing/Her breathing still almost feels labored; Hot and cold sweats; Dizzy; Shaky; Weak; Tired; Headache; Anxious; Fever; Itchy; Arm hurt; This is a spontaneous report from a Pfizer-sponsored program received from a contactable consumer. A 61-year-old female patient received first dose BNT162B2 (BNT162B2) via an unspecified route of administration, administered in Arm Left on 09Apr2021 13:00 (Batch/Lot Number: TW0151) as SINGLE DOSE for covid-19 immunization. Medical history included cancer, pneumonia, pain in her lungs, smoker and arthritis. The patient's concomitant medications were not reported. The patient experienced what scared her was not feeling like she was getting enough oxygen on an unspecified date, problems breathing/her breathing still almost feels labored on 11Apr2021, arm hurt on 09Apr2021, pain in her back where her lungs are on 11Apr2021, hot and cold sweats on 10Apr2021, dizzy on 10Apr2021, shaky on 10Apr2021, nausea on 13Apr2021, body pain/flu-like body pain in her muscles over her shoulders on 11Apr2021, out of it on 11Apr2021, weak on 10Apr2021, tired on 10Apr2021, headache on 10Apr2021, anxious on 10Apr2021, fever on 10Apr2021, itchy on 09Apr2021, feeling like maybe there is something wrong with her spleen on an unspecified date, the pain is in the left side of the back kind of by the lungs on an unspecified date, she has been sick on an unspecified date, her mental status was also affected on an unspecified date. Patient had the first dose of the Covid Vaccine on 09Apr2021 and gradually her arm hurt, she had hot sweats, she felt dizzy, was shaky, had nausea, and had body pain. The one thing she is concerned about was she had pain in her back where her lungs are and she was having problems breathing. She has a little bit of that still. She has also been out of it. Her breathing still almost feels labored, and this past weekend she thought she would go to the emergency room. Her main concern is this awful pain in her back while she was having problems breathing and getting enough oxygen. She felt weak, dizzy, and shaky. She got scared. She has been sick, she had cancer a long time ago. What scared her was not feeling like she was getting enough oxygen. The pain is in the left side of the back kind of by the lungs. It goes directly from the front to the back. On Monday it started feeling better. Today it is so much better. She will feel like she is not getting enough oxygen or giving a full breath and then this in her back. She remembers having pneumonia years ago and having pain in her lungs. That's why she knows the pain is in the back of her lungs. She has to say she is a smoker. She slowed down and couldn't smoke this week or during that. She kind of quit, that's her reality now. The pain comes and goes throughout the day but it is not as bad. She didn't have this shortness of breath and other things until a couple days after she got the vaccine. It gradually came up on her. She was not having trouble breathing, it was more slightly labored. It was not profound, just there. Sometimes when she is speaking after a while she gets tired and will have to take a moment and take a deep breath. It is so much better. She called her primary care physician and was anxious, and all he said was she would feel effects for 2 weeks. He wasn't very helpful. Her arm hurt the day that she had the shot. Even today there are little bits of pain but very light. 09Apr2021 through 11Apr2021 was when everything really hit. It was hard to lift up her arm. It was a little pain, it was no big deal. She would have the AC on and blast it when she had the hot and cold sweats. She was using napkins because she was sweating profusely. It felt like she obviously had a reaction to the vaccine. It's normal she guesses. She didn't expect it for the first dose. The 11th, 12th, 13th, and 14th it was really bad. Her whole body was sweating and would get wet. She'd be hot and then cold. She was anxious because she was having problems breathing. She still gets a little bit of hot and cold sweats, but nothing compared to what she went through. As the days go on she is slowly getting better. She was dizzy not just during the day, at night she couldn't sleep because of it. She has gradually gotten better. Yesterday she tried to do some gardening but felt so weak she had to come back inside. When she gets up she feels weak and a little bit of lack of air. She has labored breathing. She was real itchy. The shakiness, dizziness, and anxiety all came on and were horrible. She doesn't know if the nausea was because she couldn't eat and had to take her regular medication. It was very light nausea. She had flu-like body pain in her muscles over her shoulders. Her headache was major too during all of this. The headache is something that comes and goes still. It is a weird kind of headache. She had a fever and got like flu all over body pain. She doesn't know how to explain how she felt out of it. She doesn't know if it was the fact she was so sick. She had a feeling of did she do that. She couldn't make decisions. She would need to take the garbage out and go back to the garbage and think what did she come here for. Her mental status was also affected. The weakness gradually got really bad, and she still hasn't recovered from it. She still feels weak and tired when trying to do things. She was tired the day after she got the vaccine. The first day she thought it was nothing and she was fine. Gradually it got real bad when she was sick. She didn't feel that flu-ish feeling but was weak and tired. She got dizzy and she had the brain fog thing. She was having really bad headaches during the same time. The weakness and tiredness go hand in hand. She takes a mineral for her thoracic spine, but she takes that more for elderly arthritis. She doesn't have any conditions that she thinks played a role. She has been feeling like maybe there is something wrong with her spleen. Took Tylenol for her fever. Mentioned fever would go away and come back. The patient underwent lab tests and procedures which included body temperature: 102, 99 and 100.1 (unit unspecified) all on unspecified dates.  Therapeutic measures were taken as a result of fever and itchy. Outcome of the event problems breathing/her breathing still almost feels labored, arm hurt, pain in her back where her lungs are, hot and cold sweats, dizzy, out of it and headache was recovering. Outcome of the event fever was recovered on 13Apr2021, itchy was recovered with sequelae on 14Apr2021, body pain/flu-like body pain in her muscles over her shoulders was recovered on 16Apr2021, nausea was recovered on 16Apr2021, shaky was recovered on 19Apr2021. Outcome of the event weak and tired was not recovered. Outcome of all the other events was unknown.