palpitations; feeling sick; achy; back hurting; legs restless; nauseated; almost felt dizzy when getting up; developed a rash that went from one arm across her chest to the other arm and around her belly button; allergic reaction; it itched a little and she could feel that it was there.; This is a spontaneous report received from contactable reporter(s) (Consumer or other non HCP) from medical information team. The reporter is the patient.  A 51 year-old female patient received bnt162b2 (COMIRNATY), administered in arm right, administration date 04Sep2021 (Lot number: FC3184, Expiration Date: 31Oct2021) at the age of 51 years as dose 2, single for covid-19 immunisation. Relevant medical history included: "PVCs" (unspecified if ongoing), notes: Patient's Medical History (including any illness at time of vaccination)? PVCs. There were no concomitant medications. Vaccination history included: Comirnaty (Dose: 1, Lot: FC3181 Expiration: 31Oct2021, Dosage text: First and Second Doses; Right Arm, sore arm and palpation that resolved before getting dose two), administration date: 14Aug2021, when the patient was 51 years old, for Covid-19 Immunization, reaction(s): "Palpation", "sore arm", "Heart palpitations", "also has PVCs". The following information was reported: MALAISE (non-serious) with onset 05Sep2021, outcome "recovered", described as "feeling sick"; PAIN (non-serious) with onset 05Sep2021, outcome "recovered", described as "achy"; BACK PAIN (non-serious) with onset 05Sep2021, outcome "recovered", described as "back hurting"; RESTLESS LEGS SYNDROME (non-serious) with onset 05Sep2021, outcome "recovered", described as "legs restless"; NAUSEA (non-serious) with onset 05Sep2021, outcome "recovered", described as "nauseated"; DIZZINESS (non-serious) with onset 05Sep2021, outcome "recovered", described as "almost felt dizzy when getting up"; RASH (non-serious) with onset 05Sep2021, outcome "recovered", described as "developed a rash that went from one arm across her chest to the other arm and around her belly button"; HYPERSENSITIVITY (non-serious) with onset 05Sep2021, outcome "recovered", described as "allergic reaction"; RASH PRURITIC (non-serious) with onset 05Sep2021, outcome "recovered", described as "it itched a little and she could feel that it was there."; PALPITATIONS (non-serious), outcome "recovered", described as "palpitations". Relevant laboratory tests and procedures are available in the appropriate section. Therapeutic measures were taken as a result of rash, hypersensitivity, palpitations.  Additional information: Prior to vaccination, the patient was not diagnosed with COVID-19. The patient did not receive any other vaccines within 4 weeks prior to the COVID vaccine. caller reports receiving two doses of Pfizer covid vaccine 14Aug2021 and 04Sep2021. After the first dose caller reports experiencing sore arm and palpation that resolved before getting dose two. After dose two caller reports experiencing feeling sick, achy, back hurting, legs restless, nauseated and almost felt dizzy when getting up. Caller also developed a rash that went from one arm across her chest to the other arm and around her belly button. Caller reports her Dr. name-withheld she had an allergic reaction gave a script for steroid which knocked the rash out, went away. The Dr. recommended for her not to get the booster dose. Caller wants to know if it is an allergic reaction, the rash.  Second Dose: red rash from one arm to the other arm, across her chest and under her ribs and around her belly button. Caller states it itched a little and she could feel that it was there. Caller states she got the first dose back on 14Aug2021. Caller states when she initially got the vaccine, she had no side effects, just a sore arm. Caller states after the third day, she started having heart palpitations. Caller states she also has PVCs, so she kind of thought it was that, but she hasn't had issues with that lately. Caller states as the week went on, it was more intense, and it continued through that week. Caller states she got her shot-on Saturday, and it continued that whole week and it concerned her and she felt uncomfortable, so she called her Cardiologist, and he was able to get her in on 26Aug2021. Caller states he decided he wanted to do some tests to make sure there wasn't any inflammation before she was going to get her second dose. Caller states she got the tests scheduled for 03Sep2021, the day before her second shot. Caller states they did a stress test and echocardiogram and by that time the palpitations slowed down and the tests came back good with no issues. Caller states she had her second dose 04Sep2021 and she did fine that day except a sore arm but early the next morning, she woke up sick and was achy all over, her back hurt, her legs were restless, and she almost felt dizzy when getting up, she was nauseated, and stayed in bed until late afternoon, then she was able to get up and eat. Caller states late that night and the next day, 06Sep2021, she went to shower and noticed a red rash from one arm to the other arm, across her chest and under her ribs and around her belly button. Caller states it itched a little and she could feel that it was there. Caller states she went to see her doctor on 07Sep2021, and he thought she did have an allergic reaction to the vaccine. Caller states he prescribed her a steroid to knock out the reaction. Caller states she did have some palpitations again but not as intense as with the first dose. Caller states her pharmacist and some other people said she should call Pfizer and report her side effects. Caller states she called before and there was no answer, it may have been on a weekend and then she remembers that she didn't call back about her side effects. The patient did not go to emergency room. Caller asks, would they be able to tell her whether or not she should get a booster in the future? Caller states her doctor said don't get a booster because of her reaction. Caller states her doctor thinks it was definitely an allergic reaction.   No follow-up attempts are possible. No further information is expected.