nausea; intestinal distress/stomach distress; His legs were wobbly but he was able to walk; headache; Stiff neck; chills; This is a spontaneous report received from a contactable reporter(s) (Consumer or other non HCP) from medical information team. The reporter is the patient.  A 85 year-old male patient received bnt162b2 (BNT162B2), administered in arm left, administration date 30Mar2021 (Lot number: ER8733) at the age of 85 years as dose 2, single for covid-19 immunisation. Relevant medical history included: "diabetes(endocrine abnormalities )" (unspecified if ongoing); "respiratory illness" (unspecified if ongoing); "obesity" (unspecified if ongoing); "Allergy" (unspecified if ongoing). There were no concomitant medications. Vaccination history included: Bnt162b2 (Dose 1, Batch/lot number: EN6206, Unknown dose. Injected into left arm unable to confirm if it was given in the muscle, 1st dose 14:15, Injected intramuscularly, Vaccination facility type: Hospital), administration date: 09Mar2021, for covid-19 immunization; Covid-19 vaccine. The following information was reported: NAUSEA (non-serious), outcome "unknown", described as "nausea"; ABDOMINAL DISCOMFORT (non-serious), outcome "unknown", described as "intestinal distress/stomach distress"; CHILLS (non-serious) with onset 31Mar2021, outcome "recovering", described as "chills"; HEADACHE (non-serious) with onset 31Mar2021, outcome "recovering", described as "headache"; MUSCULOSKELETAL STIFFNESS (non-serious) with onset 31Mar2021, outcome "recovering", described as "Stiff neck"; PAIN IN EXTREMITY (non-serious) with onset 31Mar2021, outcome "recovering", described as "His legs were wobbly but he was able to walk".  Additional information: Caller is an 85 year old male who states he has received both of his doses of the Pfizer BioNTech COVID-19 vaccine and has been experiencing nausea and "things like that" and what he calls "intestinal distress" or "stomach distress." He tells me that he has a history of irritable bowel syndrome but reports that what he is experiencing is worse than usual. He states he was "feeling pretty good" after the first dose but then reports that it started about 3 to 4 days after his first dose of the vaccine and has continued to last, even after getting his second dose. He also reports that after his second dose he experienced "a little bit of chills" and headache, but reports these went away pretty quickly. Caller also reports that his wife also had some problems after her dose of the vaccine but did not elaborate. Caller would like to know if the "intestinal distress" was something reported by others after receiving the vaccine. He is concerned about how long this may last because it has already been going on for awhile now. He has had two shots. The 1st shot was 3 weeks ago and he had no normal things like fever, chills.  He has intestinal problems anyway and this aggravated his condition such as nausea, cramps and alternating constipation and diarrhea.  With the intestinal problems, normally, he would have good days and bad days.  After this, he has not had any good days really. It has aggravated it. That went on and he had second shot a couple of days ago. He had no fever, but did have a tiny bit of chills. This was nothing compared to what his wife had the day after. Separate report completed for her. He is still having the intestinal problems. His other people in his family, 2-3 people have gotten intestinal problems with nausea. He did not wish to provide any further details on any of the other family members that had this.  He would like to know if Pfizer has had reports of anyone else experiencing these symptoms.  It took 3-4 days after second dose before he had symptoms. He was feeling good. It has not let up until now. There was no prescriber. It took a while to get on the list to get it. He had first dose on 09Mar2021. He still has some intestinal distress with some nausea and cramps. They have been pretty steady since the 13Mar2021. His legs were wobbly but he was able to walk. He is unable to confirm if they were given in the muscle, but thinks it was because it was 2-3 inches down from his shoulder. He has not felt any pain in his arm.  He noticed one thing that is different. Usually, he has IBS, and if he takes a small Percocet, it helps a lot. Since he had the vaccine, the Percocet, which he later stated showed on the bottle as Oxycodone/Acetaminophen 5/325, does not work as well as it used to. Sometimes it would clear it up immediately. It is not working anywhere near what is used to be. He has taken 7-8 out of this bottle. He only takes one at a time. It usually doesn't work too well for the second one. Usually it is just once a day. Before this, he was taking maybe 1 every 7 days, and now is taking 1 every 2-3 days. It is in a pharmacy vial with no lot or expiration. Count size was 60. He would be willing to send a sample.  There was no seal as it is in a pharmacy vial. Aggravated intentional problem - early morning. Tiny bit of chills after second dose - early morning. Headache - 08:00 and lasted all day and went away in the evening. Legs were wobbly - 11:00. NO ER or physician's office required. Provided other relevant medical history including but not limited to these conditions:  diagnosed allergies, compromised immune status, respiratory illness, genetic /chromosomal abnormalities, endocrine abnormalities (including diabetes) and obesity: none.   No follow-up attempts are possible. No further information is expected.