Second dose: left arm hurt off and on for about 2 weeks/Second dose: left arm now has a severe stabbing pain; Second dose: left arm was warm/site was warm after receiving that second Covid 19; Second dose: headache; injection site pain; She does report she had a small rash around the injection site; She reports she started feeling bad/ she went downhill; Second dose: left arm had slight rash/Second dose: developed a rash on her chest, neck, right arm, right leg and kind of on the middle of her abdomen; Started to feel uncomfortable; Second dose: chills; Second dose: fever; Second dose: body aches; Second dose: a lot of joint aches; This is a spontaneous report from a contactable other hcp (nurse) reporting for herself.   A 56-years-old female patient received second dose of BNT162B2 (PFIZER-BIONTECH COVID-19 VACCINE, solution for injection, Lot number: ER2613, expiration date: 31Jul2021), via intramuscular in arm left on 26Mar2021, at 10:00 (at the age of 56-years-old) as dose 2, single for COVID-19 immunization. The patient's medical history included lymph nodes from 2021 to unknown date (lymph nodes removed from right side) and Breast cancer (breast cancer right side). The patient was allergic to Medication, Sulfa. She had a reaction about 20 years ago. Concomitant medication included pantoprazol taken for an unspecified indication, start and stop date were not reported. Patient previously received the first dose of bnt162b2 (PFIZER-BIONTECH COVID-19 VACCINE), via intramuscular in left arm on 03Mar2021, at 10:00 (Batch/Lot number unknown) as dose 1, single for covid-19 immunisation. The patient did not receive any other vaccines within 4 weeks prior to the COVID vaccine. Prior to vaccination, the patient was not diagnosed with COVID-19. Since the vaccination, the patient has been tested for COVID-19. On 27Mar2021, the patient experienced chills, second dose: fever, Started to feel uncomfortable, Second dose: body aches, Second dose: a lot of joint aches. on an unknown date patient experienced second dose: left arm hurt off and on for about 2 weeks, second dose: left arm was warm, Second dose: left arm now has a severe stabbing pain, Second dose: headache. On 11Apr2021, the patient had Second dose: heavy parts of a rash develop on her right side, Second dose: developed a rash on her chest, neck, right arm, right leg and kind of on the middle of her abdomen and on an unknown date she had Second dose: headache, injection site pain and Second dose: chills are coinciding with the severity of her arm pain, Second dose: left arm was warm, Second dose: left arm now has a severe stabbing pain She was calling about the Covid 19 vaccine, She does report she had a small rash around the injection site, She reports she started feeling bad/ she went downhill. She reported it has been about 3 weeks since she has had her second dose. She reported after receiving her second dose she was down for about 5 days. She had chills, fever, body aches, and a lot of joint aches. Her arm hurt off and on for about 2 weeks. Clarified her left arm hurt, as she received her Covid 19 vaccine in her left arm. Her left arm was warm and had a slight rash. Then the rash disappeared. Then, this past weekend she was stung by a caterpillar, and she broke out in another rash. She reported her left arm now has a severe stabbing pain. When she goes to sleep the pain goes away but during the day the pain in her arm comes back. It seems logical that this would be part of the Covid 19 vaccine because she didn't do anything to her arm. This time it's about 3 times worse than when she had the vaccine. She reported she was stung on the right side of her neck by the caterpillar. The caterpillar crawled into her dress. She had an awful systemic reaction because of the caterpillar sting. She was asking was the reaction to the caterpillar sting because of the Covid 19 vaccine She reported she started feeling bad with the chills, fever, body aches, and joint aches the day after her vaccine, clarified as 27Mar2021. Within 24 hours of receiving her Covid 19 vaccine she went downhill. Sometime during that week, the pain in her arm escalated, she thought between 31Mar2021 and 02Apr2021 her arm got worse. She was stung by the caterpillar on 11Apr2021. She does report she had a small rash around the injection site and the site was warm after receiving that second Covid 19 vaccine but that's it, no systemic rash with the Covid 19 vaccine. At the time of the caterpillar sting, she had some intermittent arm pain, she doesn't remember the injection site being warm at this point and she had no rash at the injection site. The caterpillar stung her on the right side of her neck, and she had heavy parts of a rash developed on her right side. She developed a rash on her chest, neck, right arm, right leg and kind of on the middle of her abdomen. The worst thing at this point continued to be the arm pain in her left arm. She took the Advil about 36 hours after her second Covid 19 vaccine when she first noticed the injection site pain. She didn't really take it again. She doesn't like to take any pain medicine even Advil. She didn't take the Advil again until she developed the stabbing pain in her left arm. She has only taken one pill two times and yesterday she took 2 pills. She has found that rest helps her arm pain. She reported she was allergic to sulfa. She had a reaction about 20 years ago. The reaction was difficulty breathing and her throat tightened up. The first reaction to sulfa was when she was in the emergency room for a flu. The sulfa was given to her in the emergency room. Right after getting the second Covid 19 vaccine, within that 36-hour period, when she was going downhill, her fever was 102 degrees Fahrenheit. Within 24 hours her temperature was normal. Following the caterpillar sting, she had a fever of 101 degrees Fahrenheit. She hasn't had a fever since, but she does still have chills. The chills are coinciding with the severity of her arm pain. She woke up that morning and her arm felt a little better, but she still felt the pain. Her arm already feels like it was starting to hurt again like yesterday. The arm pain she cannot explain. She reports her rash is disappearing. The adverse event resulted Doctor or other healthcare professional office/clinic visit. The patient had anaphylactic reaction day after receiving the second Covid 19 vaccine. The patient required self-administered antihistamine as medical intervention. The patient did not see in the Emergency Department and was not hospitalized or admitted to an emergency unit. The patient took self-administered Benadryl as treatment or procedure. No laboratory tests or diagnostic studies performed. The patient has a history of any previous allergies to specific products or any conditions indicative of an allergy: Medication, Sulfa-difficulty breathing, throat tightened up. The patient was taking pantoprazole prior to the event being reported. The patient did not receive any other vaccines administered on same date with the Pfizer vaccine considered as suspect. The patient did not receive any recent vaccines for SARS-CoV2 other than Pfizer-BioNTech COVID-19 Vaccine prior to the event being reported. The patient did not receive any other vaccines around the time of Pfizer-BioNTech COVID-19 Vaccine vaccination. patient underwent lab test and procedure which include Fever 102 Fahrenheit (fever -102 degrees Fahrenheit. Within 24 hours her temperature was normal), Fever 101 (Following the caterpillar sting, she had a fever of 101 degrees Fahrenheit) all on unspecified date. The outcome of chills, started to feel uncomfortable, was not recovered, outcome of event Second dose: body aches, second dose: a lot of joint aches was recovered on 02Apr2021, outcome of event second dose: left arm hurt off and on for about 2 weeks, second dose: left arm was warm, second dose: left arm now has a severe stabbing pain, injection site pain and headache, second dose: fever, Started to feel uncomfortable, Second dose: left arm was warm, She does report she had a small rash around the injection site, She reports she started feeling bad/ she went downhill was unknown and the outcome of event Second dose: left arm had slight rash/Second dose: developed a rash on her chest, neck, right arm, right leg and kind of on the middle of her abdomen was recovering.  Description of complaint: Caller reports it's been about 3 weeks since she's had her second dose. Her left arm now has a severe stabbing pain. She took Advil for the arm pain and sometimes the Advil worked and sometimes it didn't. She took the Advil about 36 hours after her second Covid 19 vaccine when she first noticed the injection site pain. She didn't really take it again. She doesn't like to take any pain medicine even Advil. She didn't take the Advil again until she developed the stabbing pain in her left arm. She has only taken one pill two times and yesterday she took 2 pills. NDC/Lot/Expiry for Advil not known, she has thrown that bottle away. No further details were provided or obtained.  No follow-up attempts are needed. No further information is expected.