the back of her tongue felt numb/developed a numb tongue; throat was itchy then sore/her throat was sore and itchy; throat was itchy then sore/her throat was sore and itchy; chest pain; not quite normal breathing/uncomfortable breathing/heavy breathing that was more of an irregular breathing; Fatigue; her lungs felt swollen; This is a spontaneous report from a Pfizer-sponsored program  via a consumer reported for a patient (reporter's mother). A 23-year-old female patient received the first dose of BNT162B2 (PFIZER-BIONTECH COVID-19 VACCINE), via an unspecified route of administration, administered in Arm Right on 17Apr2021 (Lot Number: EW0162) (at the age of 23-year-old) as single dose for covid-19 immunization. Medical history included asthma and diagnosed at age 2, allergy and allergy to bull dogs. Concomitant medications included budesonid taken for allergy, start and stop date were not reported; formoterol fumarate dihydrate taken for allergy, start and stop date were not reported. The patient experienced her lungs felt swollen in Apr2021, the back of her tongue felt numb/developed a numb tongue on 17Apr2021, throat was itchy then sore/her throat was sore and itchy on 17Apr2021, chest pain on 17Apr2021, not quite normal breathing/uncomfortable breathing/heavy breathing that was more of an irregular breathing/out of breath walking up the steps on 17Apr2021 and fatigue on 17Apr2021. A family member had some reaction to the first pfizer covid-19 vaccine. Wanted to know where can she find information to determine if the second vaccine shot is safe. 40 minutes from the time of the injection the back of her tongue felt numb and her throat was itchy then sore. About 40 minutes after that those symptoms went away. Later in the day she had chest pain and not quite normal breathing. After using her asthma inhaler twice in a short time this dissapated. Fatigue remained for about a week. Her daughter was prescribed Metronidazole 500mg (she initially thought it was penicillin) and the packaging information of the antibiotic says not to receive any vaccines. She was scheduled for her second dose next Tuesday (18May2021) and wanted to know if it would this be applicable to the Pfizer BioNTech Covid 19 vaccine. Mother calling on behalf of daughter who received the first dose of the Pfizer BioNTech Covid 19 vaccine on 17Apr2021. She was told to wait 30 minutes after the vaccine and was okay, however after 40 minutes after the vaccine she developed a numb tongue, her throat was sore and itchy. This subsided within about 30 minutes (also reported as 40 minutes). About 4 hours after the vaccine she developed chest pain and uncomfortable breathing. Her daughter states her lungs felt swollen, and was out of breath walking up the steps. She did use her AuviQ and albuterol inhaler and the first dose of AuviQ didn't work so she repeated it and it helped. She called the doctor and used her peak flow meter and the doctor on call stated that her reading was okay and did not need further medical attention. After that evening those side effects went away. Caller has a past medical history of asthma and allergies to bulldogs. If she was even around someone who has been near a bull dog she will develop chest symptoms. Mother spoke with CDC and they told her as long as her daughter didn't go to the ER it was okay for her to receive the vaccine and wanted to know if she get her second dose of the Pfizer BioNTech Covid 19 vaccine. She is scheduled to receive it next Tuesday (18May2021). Her doctor said that some people react to the polyethylene glycol and want to know if she could get tested for that. After the patient received the vaccine, her tongue was numb and her throat was sore and itchy but it went away. This started 40 minutes after the patient received the vaccine. 4 hours after the patient received the vaccine, she had chest pain and heavy breathing. The caller is nervous because the patient has only had this chest pain during a severe allergic reaction in the past. The patient do about the second dose. The patient was also prescribed an antibiotic this week and the antibiotic paperwork said not to have any vaccines while taking that product. The patient is due for the second dose of the vaccine this week, is it okay to get because she will still be on the penicillin. This event happened after receiving the first dose of the vaccine on 17Apr2021. The patient also had fatigue for a week. The patient had the heavy breathing that was more of an irregular breathing. The patient's lungs felt swollen, it felt like there was weight on her chest, it was uncomfortable breathing. The caller felt out of breath walking up the steps. The caller used her inhaler twice. The patient underwent lab test included investigations: the on call doctor had the patient do the peak flow meter and it was fine, over 550 on 17Apr2021. No more information was available. The doctor also had the patient press her chest to see if there was pain when she touched it and there was not so the on call doctor felt comfortable not making the patient go to the emergency room. Caller reports that her daughter received her first vaccine dose on 17Apr2021 and afterwards experienced a severe reaction with symptoms including, tongue swelling, sore throat, and Chest pain. Caller reported that it didn't getm severe enough for her to need an Epi pen. Caller reports that they have an appointment to see her doctor as well, for further discussion. She calls today to ask if symptoms with the second dose are expected to be worse than they were with the first shot and timing of the second dose. We refer you to speak to your healthcare provider about the risks of the vaccine compared to the risks of potentially not being fully protected against COVID- 19 infection. Your healthcare provider knows your health situation and has access to information that can better help inform this decision. The outcome of the event her lungs felt swollen was unknown, the event fatigue was recovered in Apr2021, the other events was recovered on 17Apr2021.  Information on lot/batch is available; further information has been requested.