Weight: Caller states around 150 and fluctuating; Fever; shaking; nausea; violent vomiting 5 times; diarrhea; body aches; This is a spontaneous report from a contactable consumer (patient). A 50-year-old non-pregnant female patient received bnt162b2 (PFIZER-BIONTECH COVID-19 mRNA VACCINE, Formulation: Solution for injection, Lot number: EN6205), via an unspecified route of administration in left arm on 06Mar2021 at 08:45 (at the age of 50-year-old) as dose 1, single for COVID-19 immunisation at other facility. Medical history included rheumatoid arthritis from an unknown date and unknown if ongoing, COVID-19 from an unknown date in Dec2020 to an unknown date (She had covid in Dec2020 and that was when she had covid symptoms. It took around a month to get back to normal), drug penicillin allergy from an unknown date and unknown if ongoing, fever from an unknown date and unknown if ongoing, chills from an unknown date and unknown if ongoing, shaking from an unknown date and unknown if ongoing (she added that she has heard of typical stuff like fever, chills, and shaking. She added that this was all of the regular stuff that she had with Covid). Concomitant medication included leflunomide taken for rheumatoid arthritis from an unspecified start date to 04Mar2021. The patient previously took erythromycin and experienced allergies. The patient did not receive any other vaccines within four weeks prior to the vaccination. The patient had diagnosed with COVID-19 prior to vaccination. The patient had not been tested for COVID-19 since the vaccination. On 06Mar2021 at 18:00, the patient experienced fever, shaking, nausea, violent vomiting 5 times, diarrhoea, body aches; all these events resulted in doctor or other healthcare professional/ clinic visit and did not receive any treatment for these events. Caller was called in follow-up to a report she placed on the Pfizer website but does not have the reference number. She adds that all information she was providing about the side effects was reported online. She does add new information regarding a medication that she is taking and was not fully reported on online. She is calling for Medical Information. Caller states that she had COVID in December. Three full months had passed when she received her first Covid vaccine on 06Mar2021. Caller states that she read that if it was recently that somebody had Covid, then their body will react like it was the second vaccine when they got the first vaccine. She had a lot of symptoms. Caller added that the worst symptom she had following the vaccination was violent vomiting. Caller added not that she would not do it, but she does not want to do the second shot if the nausea and throwing up part persist. She wanted to know if the benefits in getting the shot outweigh nausea and throwing up. She obviously had antibodies going into the first vaccine, and now she has additional antibodies. Caller asked if people have the exact same symptoms with the second shot or was it better or worse. She spoke with her physician who said based on how caller reacted the physician does not fault the caller for being worried but cannot answer whether caller should get the second vaccine. She wanted to know if these are side effects or an allergic reaction. If it was an allergic reaction vs a side effect, she would think differently. She does not want to be at risk for anything or have any other consequences. Caller wanted whatever information she can gather as her second shot was scheduled for the second dose. She can deal with the throwing up, it was the worst symptom and feeling she had. She could deal with it if she knew that was how it was. She does not know if she could deal with it another year if there was a booster shot. She does not want to jeopardize anything or do something foolish. Anytime anybody heard of her reaction they would tell her that they do not know if she should get the second vaccine. Caller asked if she wants to complete safety report, and she already reported this online. She reported all this information if that was what call handler was seeking. She just wants to know what she should do. She does not have a reference number. She does not have the covid vaccination card information but reported it online. She does not have any follow up information or response that she received after reporting online. Verified that it was the Pfizer website. Caller stated that her weight was around 150 and fluctuating. She filed online but did not give her address. She did give her e-mail address. It was the Pfizer website. She believes she did it directly through Pfizer. She filed online yesterday. She did relay on the online report that she has Rheumatoid arthritis and takes an immunosuppressant which she stopped two days before taking the first vaccination. This time for the second dose, she stopped a week before she will be getting the second dose. She thinks an immunosuppressant would be better and not worsen her symptoms. She stopped taking her medication "this past weekend". She believes that it would help positively and not negatively. The medication was Leflunomide, and she has been on it a couple of years. She takes 1 at night. She does not have additional information on this medication and looked on her phone to see that the dose was 20 mg daily for rheumatoid arthritis. Caller clarified that she received her vaccination 06Mar2021. There was no additional information that was new that she would like to provide in this report except for the fact that online asked if she had covid but did not ask when. She had covid in December and that was when she had covid symptoms. It took around a month to get back to normal. It was about three months after having covid that she received her first vaccination. She spoke with friends who had nausea, but nobody has been throwing up. She added that this information was still fresh in her mind. She believes her friends reported on their own side effects and had their own site, some had Moderna, and some had Pfizer vaccines because they were separated. She does not want to report on them because they already reported on themselves. Caller also asked if going forward, assuming that there was a booster every year, will it have to be the same manufacturer that a patient receives. There was a request for medical information. She wants to know if the benefits in getting the shot outweigh nausea and throwing up. Caller asked if people have the exact same symptoms with the second shot or was it better or worse. She wants to know if these are side effects or an allergic reaction. Caller also asks if going forward, assuming that there was a booster every year, will it have to be the same manufacturer that a patient receives. The patient underwent lab tests and procedures which included weight was around 150 and fluctuating on an unknown date. The outcome of weight fluctuation was unknown and rest all other events were reported as resolved on an unknown date.  No follow-up attempts are possible. No further information is expected.