I just started coughing and they told me to go to the emergency room so I did you know; arm got real sore; Fever; feel nauseous; Dizziness; got progressively worse; I could hardly do over I was just so sick with the dizziness; Dizziness; got progressively worse; I could hardly do over I was just so sick with the dizziness; I have been so off-center; This is a spontaneous report received from a contactable consumer. A 78-year-old female patient received BNT162B2 (PFIZER-BIONTECH COVID-19 VACCINE, formulation: Solution for injection, second dose on 10mar2021 (formulation: Solution for injection, lot number: EIV6202) via an unspecified route of administration at single dose for covid 19 immunisation. The patient medical history included ongoing tubular dysfunction, migraine and patient had the vestibular Dysfunction from 40 years, ongoing migraine headache. The patient historical vaccine included BNT162B2 (formulation: Solution for injection, lot number: EL9267), (first dose) via an unspecified route of administration on 17feb2021 at single dose for covid 19 immunisation and took Flu shot for immunization. The patient had regular flu shot a few years ago it was mentioned that doctor told get a Benadryl an hour before my shot which I did and she was in the hospital for 5 hours on a Breathing machine. Concomitant medications included rizatriptan benzoate (MAXALT) at 10 mg, as needed for migraine. Consumer stated, "I had Tubular Dysfunction been diagnosed many years ago and I live with dizzy every day In Mar2021. I have tried everything to get rid of it and nothing is working. This is going on for Probably 40 years may be more anyway (Intent: History). I had my second vaccine on 10Mar2021 and on the first day, my doctor told me since I had the reaction to the regular Flu shot a few years ago my doctor told me get a Benadryl an hour before my shot which I did and the first day everything was wonderful. I was so happy you know no reaction, I didn't have any. The first time I got the flu shot I was in the hospital for 5 hours on a Breathing machine, it was beautiful. I thought I was free and then the next day my arm got real sore and I expected that and I expected to have a fever I expected to feel nauseous and all but the dizziness set in and just got progressively worse and it will be a week tomorrow since the vaccine still I was dizzy In Mar2021. I have been so off-center In Mar2021. Sunday I could hardly do over I was just so sick with the dizziness and yesterday the same thing and this morning I thought I will get over maybe today will be a good day and it's the same. I called my neurologist and he said that any pre-existing condition can be exaggerated by the vaccine while the system is building up his anti-bodies so I expected but is this going to go away, this thing, is this going to go away and reported just so beside myself, I just can't live like this anymore everyday you know this is beyond dizzy." tried taking, I do have a prescription for it starts with M wait a minute it hasn't helped but I tried it , if it doesn't help for the first time I won't take it again but I have a prescription for Meclizine 25 mg Tablets. Consumer stated, "I spoke to somebody earlier and told me to call this number and tell you that what's going with me. Tomorrow will be one week, since I had my second Covid shot and the first day, I got it everything was fine. The second day I was feeling a little off and I thought okay will they told me that I would feel little, may be not sick-sick but not feeling good and then the second day after that Friday. I got it on Wednesday and by Friday, I have a pre-existing condition and it is called Vestibular Dysfunction. Consumer stated, "I had the Vestibular Dysfunction from 40 years. So, I live with dizzy all the time. But by Friday, it is just unbelievable dizzy, Saturday was worse, Sunday was even worse, yesterday was little bit better. Today, I am still shaking and dizzy and Tomorrow will be one week since I have the shot and I read that stuff happened in the first week and I was wondering, have you had the other people with the same problem, Consumer further added, "It is not an inconvenience, this is horrible way to live. I feel dizzy all the time, this is horrible. Was I told that I should talk to you about, can the shot exacerbate a bad situation like this, they told me to call you, now I getting no help at all can anybody tell me." Consumer stated, "Nothing I have no recollection of any of that no, I just started coughing and they told me to go to the emergency room so I did you know In Mar2021. The patient has received treatment with Meclizine 25 mg tablets. The outcome of the events was reported as unknown.