general sense of malaise; feeling nauseated; He has felt bad all day; chills; GI discomfort; pretty bad diarrhea; feeling exhausted/He is in bed exhausted.; injection site soreness/His injection site is also really sore today; This is a spontaneous report received from a contactable consumer reported for a male patient (Husband) via medical information team.  A 73-years-old male patient received second dose of BNT162B2 (PFIZER-BIONTECH COVID-19 VACCINE, Solution for injection, lot number was not reported), via an unspecified route of administration in Arm Left on 22Jan2021 (age at vaccination was 73-years) as single dose for covid-19 immunization. Medical history included, prostate cancer, sensitive with food sometimes, fish allergy. There were no concomitant medications. On unspecified date, Saturday patient ate a piece of fish. He is sensitive with food sometimes. If there was bacteria, he gets a nausea feeling and he has to dry heave sort of. Patient had to do that a little bit on Saturday when he ate this fish. He had paused and then kept eating. So reporter was wondering if this onset was from that. It would have been 48 hours after. It could be possible. He had the dry heaving for about 3-4 mins. Then he kept eating. Normally that feeling is acute and will not eat. But he did not feel it again. Patient previously received BNT162B2 (PFIZER-BIONTECH COVID-19 VACCINE, Solution for injection, lot number was not reported), via an unspecified route of administration on 04Jan2021 as single dose for covid-19 immunization and experienced exhausted which was resolved. Reported that patient experienced events in morning and asked is it possible to experience adverse events at this point in time. Reported that patient is a physician and currently in bed feeling awful. Patient was in his 70's and winning a battle against prostate cancer. He was doing well. With the second dose of the vaccine he did not have any side effects. They worked out together and everything after he had the second dose. Then a week ago, they had someone helping them in their home who tested positive for COVID last Thursday. Reporter and her husband (patient) were not there when she was there. Reporter herself has tested negative twice now. Her husband did not get tested as he had already completed his series of the vaccine. Today he was having diarrhea and GI discomfort. He does not have a fever. He was in bed exhausted. He also had chills. His injection site is also really sore today. He does not recall it being sore the past week or so. Reporter querying for any possibility that her husband (patient) could be having a late onset response to the second dose of the vaccine. Reported that patient weight between 185-187. Reported that patient had dint get the vaccine in his providers office, he got it from the staff where they were giving the vaccine. The hospital was giving them. Patient had no symptoms at all after receiving his second vaccine. He had a really really good workout after the vaccine. They were joking that maybe his second dose was not effective since he had no side effects. They were joking about it because he had no reaction. Then today all of those symptoms hit him. Reporter stated that she was unsure of the outcome as of now. He did some patient work this morning and then went to bed. He has felt bad all day. She knows that the second dose was given in his left arm as that was the arm that was sore today. On 08Feb2021, the patient experienced chills, GI discomfort, pretty bad diarrhea, feeling exhausted/he is in bed exhausted, injection site soreness/his injection site is also really sore today, on an unspecified date, the patient experienced general sense of malaise, feeling nauseated, he has felt bad all day. Patient not received treatment for events. Outcome of events chills, GI discomfort, feeling exhausted/He is in bed exhausted, injection site soreness/His injection site is also really sore today (vaccination site pain) was not recovered, general sense of malaise, feeling nauseated, pretty bad diarrhea, He has felt bad all day was unknown.   Information about lot/batch number has been requested.  Follow-up attempts completed. No further information expected.