sore arm, Caller states all of the vaccines gave him a sore arm.; he was diagnosed a few weeks ago with an enlarged prostate; This is a spontaneous report received from contactable reporter(s) (Consumer or other non HCP). The reporter is the patient.  A 73-year-old male patient received BNT162b2 (BNT162B2), on 02Dec2021 as dose 3 (booster), single (Lot number: FK9896) and on 30Mar2022 as dose 4 (booster), single (Lot number: FK9896) at the age of 73 years for covid-19 immunisation. The patient's relevant medical history included: "high blood pressure" (unspecified if ongoing); "Hemorrhoids" (unspecified if ongoing), notes: Hemorrhoids He was diagnosed with having hemorrhoids over a decade ago.; "Blood pressure" (unspecified if ongoing). Concomitant medication(s) included: LISINOPRIL taken for blood pressure measurement. Vaccination history included: BNT162b2 (DOSE 1, SINGLE, First Shot: 17Apr2021, LOT: Caller first states ER, then states it is EIZ8T34 or EI28T34, Caller states it is hard to read the writing on the card. , NDC, EXP: Unknown), administration date: 17Apr2021, when the patient was 72-year-old, for COVID-19 Immunization, reaction(s): "sore arm"; BNT162b2 (DOSE 2, SINGLE, Second Shot: 08May2021, LOT: EIZ8734 or EI28734, NDC, EXP: Unknown, Caller states he had the sore arm with both doses.), administration date: 08May2021, when the patient was 72-year-old, for COVID-19 immunization, reaction(s): "sore arm". The following information was reported: PAIN IN EXTREMITY (non-serious), outcome "unknown", described as "sore arm, Caller states all of the vaccines gave him a sore arm."; PROSTATOMEGALY (non-serious), outcome "unknown", described as "he was diagnosed a few weeks ago with an enlarged prostate". Relevant laboratory tests and procedures are available in the appropriate section. Therapeutic measures were taken as a result of prostatomegaly.  Additional information: Caller states that several months ago he got the shots, and he states that this is not about Covid. He got the Covid shots and everything else and, he got 2 boosters. They told him at that pharmacy that Pfizer was the manufacturer of those vaccines. Caller states that when he was diagnosed a few weeks ago with an enlarged prostate, he was given a medication which caused hallucinations. Because he is 73, the doctor discontinued them because it had caused him to have hallucinations. He states that he was prescribed Doxazosin and states that and the other medication caused hallucinations, the bad type. The Doxazosin also causes extreme physical weakness. He knows that the drug does not cause the enlarged prostate to shrink to normal size. He states that it is a mountain of labor, just to clean a room. He has to sleep and take naps in between. He asked the pharmacist yesterday at (withheld), if there are any side effects of a medication for an enlarged prostate that does not cause weakness. The doctor told him there is not any medication that does not cause weakness. Caller states that when taking other medications, he has talked to 3 different pharmacists about this. He is not sure if Pfizer manufacturer a drug like this, but he thought he would take a chance because they manufactured the Covid-19 shots. He thought Pfizer might just know if there is a medication for the enlarged prostate that doesn't cause this weakness. He states that he does mind the hallucinations, they are minor. He lives a block away from Walmart and to walk there, he needs to take several breaks because he is exhausted, due to this physical weakness. He does not care about any other side effects, and he does have others. He just wants that major weakness in his body to go away so, he can walk normally and not need to take breaks. When clarifying if the Doxazosin he is taking is a Pfizer product, the caller states that he does not know, stating they never tell him who the manufacturer is. He just guessed because, he has been going to the same pharmacy for the Covid shots and, Pfizer makes them. Caller states that any other side effects he looked up, it said weakness, which he has and hallucinations, which are minor. They go away in a few seconds, and he does not mind them. He can't take this weakness. He has hallucinations when his eyes are closed, and they only last a second or 2. He states that he gets hallucinations because of his age. He looked it up and it said that senior citizens do experience hallucinations. He states that they are not serious but, they are a little annoying. It does not cause lack of sleep and, he is 73 and had never had hallucinations in his life. He does not take drugs and has never taken drugs unless they are talking about caffeine in soda. It is a little bit unnerving, but he realized that they only last a few seconds and those are what he guesses are side effects of old age. Caller states he does not have any other side effects or upset stomach. Sometimes, he is a little off balance but that is just annoying. He will just grab a wall and everything is fine. With the weakness, it is really just irritation. Yesterday, he went to pharmacy and he has to go again today. When he goes, he has to take naps or he will get tired. It is just a little muscle weakness that he just wants to go away. Caller states that with the first Covid shot, which was many months ago, he told his neighbor that he just had a sore arm. Indication: The problem more than anything is the weakness, more so than the enlarged prostate. Who wants to have a life where you have to pee every half hour and if he is sleeping, it will wake him up. Clarified that the other medication that the caller mentioned that caused problems and he had to change medications as the same medication he previously mentioned that caused hallucinations. He states that he does not remember the name of that medication. Caller states all of the vaccines gave him a sore arm. Test results: The doctor called him with test results and said they were abnormal. They said he had blood in his stool. Caller states that he has always had blood in his stool because he has hemorrhoids, which he has had for a decade. He states that he never went to them for that because it is not a problem. He was diagnosed with having hemorrhoids over a decade ago. He also has a kidney stone and the doctor said it was too big to take out.