both my legs felt like it was on fire; itching on back and arm (on certain spots); felt heat across my forehead; not feeling my self; she had very bad allergic reaction to medicine (Unspecified Medication) and Penicillin, Amoxycillin, flu shot; I started having reactions; joint pains like real hot, hot all over my legs at the bottom, both my legs is having like the chills and once in where just my back; I started having reactions; joint pains like real hot, hot all over my legs at the bottom, both my legs is having like the chills and once in where just my back; My arm itch and stuff; I didn't feel well; feel like my skin just like on fire like something inside my side that's burning me; I am uncomfortable; she had very bad allergic reaction to medicine (Unspecified Medication) and Penicillin, Amoxycillin, flu shot; she had very bad allergic reaction to medicine (Unspecified Medication) and Penicillin, Amoxycillin, flu shot; This is a spontaneous report from a contactable consumer. This 76-year-old female consumer (patient) reported that she received bnt162b2 (PFIZER-BIONTECH COVID-19 VACCINE, Solution for injection, Lot Number: ER08736, Expiry Date: Unknown), via an unspecified route of administration, administered in right arm at the top in muscle on an unspecified date as dose number unknown, single for covid-19 immunisation; amoxicillin, route of administration, start and stop date, batch/lot number and dose were not reported for an unspecified indication; influenza vaccine, route of administration, start and stop date, batch/lot number and dose were not reported for an unspecified indication. Medical history included ongoing allergies (She do have allergies), blood pressure abnormal (Verbatim: Blood pressure), blood cholesterol abnormal (Verbatim: Cholesterol), gastrooesophageal reflux disease (Verbatim: Acid reflux (esophageal)). She had cancer twice and she had thyroid removed and both her breast removed. She knew stuff like that and it was under control cause as she got to know every 6 months in her exams do her remission. Concomitant medication(s) included somatostatin acetate (SOMASTIN) 40mg taken for an unspecified indication, start and stop date were not reported; metoprolol tartrate 50 mg taken for blood pressure abnormal, start and stop date were not reported; amlodipine besilate 10 mg taken for an unspecified indication, start and stop date were not reported; lansoprazole (PREVACID) 15 mg taken for gastrooesophageal reflux disease, start and stop date were not reported. Facility: she got it down there in her city. She had side effect, she took that Pfizer on an unknown date at 12 PM down there where was this place that took at, and but after she took that she sat there for 30 minutes but nothing happened. She was okay but by 03:30 PM when she came, they have got home, she started having reactions; joint pains like real hot, hot all over her legs at the bottom, both her legs was having like the chills and once in where just her back and arm (on certain spots) and felt heat across her forehead. She took Benadryl. She was not the same, not feeling her self but it was not as bad as it was a day before. She was not sure what to do as she do have allergies.Her arm itch and stuff they know like that, so what could she do to take, what could she take to get rid of that. Consumer stated that that was really uncomfortable, she had very bad allergic reaction to medicine (Unspecified Medication) and Penicillin, Amoxycillin, flu shot, she couldn't take any even Pneumonia shot, she had anti-vaccine. She didn't feel well; feel like her skin just like on fire like something inside her side that was burning her. Consumer wanted follow up from Pfizer as she needed it as she did not take the second dose. Scheduled Date for the second dose: 06Jun2021. Laboratory test on an unspecified date: primary doctor checked her sugar, sodium and other unspecified test (result unknown). Treatment: doctor just told her to watch what she eat. They told her what to do, what to take, why to get rid of that. She received treatment Benadryl for events "legs felt like it was on fire, itching on back and arm (on certain spots) and felt heat across my forehead" while no treatment for other events. The outcome of all events were unknown.  Follow-up attempts completed. No further information expected.