severe allergic reaction to the vaccine; sore arm; neck pain; getting lots of saliva; tongue started swelling; rapid breathing, couldn't control her breathing; heart rate it got faster; started getting confused; shaky; wheezing; swelling of her throat; blood pressure dropped; This is a spontaneous report form a contactable consumer reporting for herself.  A 61 years old female consumer received the first single dose of BNT162B2 (PFIZER-BIONTECH COVID-19 VACCINE; NDC number 59267-1000-01) on 29Mar2921 at 14:15, in left upper arm, for COVID-19 immunisation. No other vaccines were given on the same date or within 4 weeks. Medical history included allergic to hamsters (she found out that this one had the Chinese Hamster Ovary cells and she knew she had problems with those things), allergic to prednisone (crazy rash, itching), allergic to a lot of different things, sinus infection. Family history included allergy (the whole family had allergies). Concomitant medications included unspecified antibiotics for sinus infection (but it had cleared up by then) and unspecified allergy shots (but not a vaccine). The patient just wanted to report that she had a severe allergic reaction to the vaccine on 29Mar2021. Symptoms began minutes after getting vaccine. The patient experienced getting lots of saliva started with a couple of minutes of getting the shot, tongue started swelling, rapid breathing, couldn't control her breathing, heart rate it got faster, started getting confused, shaky, wheezing, swelling of her throat, blood pressure dropped, all on 29Mar2021. On 30Mar2021 the patient experienced sore arm and neck pain but she thought that was more of a vaccination saying it was working. Clinical course of the events included the following information: the patient had to stay for a while since she had allergies normally. She started getting lots of saliva and she thought that was her body saying, she did something, not a big deal. Around 15 minutes, she was at a grocery store, she started walking around, her tongue started swelling, rapid breathing, she couldn't control her breathing and heart rate, it got faster. She started getting confused, shaky, it wasn't too good. She made her way back to the place where the injections were done, they were trying to get her to use her epinephrine (EPIPEN). She took a diphenidramine (BENADRYL) while walking around looking for her husband and then took another and was wheezing. She thought BENADRYL would have helped. She should have taken her EPIPEN looking back, she thought BENADRYL would help. They heard wheezing, they contacted the other pharmacist, who contacted EMS then they came and took her to the emergency room on 29Mar2021 in the afternoon. When she was wheeled in, the doctor met her in the hall and he said they could give her a steroid shot. The patient stated she was allergic to prednisone, she got a crazy rash, itching, it's not just prednisone, it's an allergy. She got the shot at 14:15 and she was at the hospital by 15:00. The patient thought she was there for 5 hours and then she was sent home. Her blood pressure dropped. The only one she saw was 114/39 but her husband saw it went even lower than that. At the emergency room, they had the automatic thing strapped on so they watched her until it started going back up again. The vaccine shot was probably the easiest shot she had ever had. She had never had any problems. She did not research it very well in the beginning because she thought they should be good. The patient was told to not get the second vaccine. The events also required physician office visit. Allergic reaction symptoms resolved on 29Mar2021 but the swelling of her throat and heart rate lasted about four days, until 02Apr2021. Neck pain resolved on 01Apr2021. Sore arm resolved on 03Apr2021 or 04Apr2021. Blood pressure dropping resolved on an unspecified date in 2021.  Information on the lot/batch number has been requested.