terrible terrible stomach pain; bug in his colon; white blood cell 18000/19500; his blood pressure was out of the roof; could not eat anymore; he's lost 10 pounds; dehydrated; vomiting 5 times; nausea; feeling warm; broke out in sweats; arm was sore; This is a spontaneous report from a contactable consumer (patient's wife). This consumer reported similar event for 3 patients (for herself, her husband and their doctor). This is 1st of three reports (husband case) and only this case is serious. A 72-year-old male patient received BNT162B2 (PFIZER-BIONTECH COVID-19 VACCINE), dose 1 via an unspecified route of administration, administered in left arm on 25Feb2021 16:15 (Lot Number: EN6202) at a single dose for COVID-19 immunisation. Medical history included diabetes mellitus and blood pressure abnormal; both from 2007 and ongoing; about 13-14 years, he does not take insulin, he takes oral medication. The consumer is calling for her husband who is in the hospital. His symptoms started after Covid 19 injection. He suddenly, out of nowhere, got a terrible, terrible pain in the middle of his stomach, it doubles him over, and he broke out in sweats and this was Saturday, 27Feb2021, in the morning. The sweating went away but the pain continued and continued. He went to urgent care on 27Feb2021 they thought he was constipated and was treated for constipation. The caller reports she should have given him Maalox but they had Dulcolax at home and the urgent care doctor said that was fine to take. Besides that he took 2 of Citrucel tablets and then managed to give him a little apple juice. He could not eat anymore his bowels are pretty messed up and he was going to the bathroom a little bit. He hasn't been eating very much. He was going to go to the ER Saturday night but it was a zoo in there, somehow he made it through the weekend. They have been putting frozen peas wrapped in towels on his stomach. He was miserable with pain. On Monday, 01Mar2021 he went to his primary care doctor and told him to go straight to the emergency room. The caller reports that, in fact, when she and her husband were at the primary care doctor, the doctor told them that, this is anecdotal info, that she (the doctor) received the Pfizer vaccine and it was about the same amount of time that she experienced the same kind of pain but hers went away after about 2 hours. Caller reports the doctor is young. With all the laxatives the patient had taken, he had the runs. They admitted him to the hospital and they ran all kinds of tests. His white blood cell count was 18000. Because he was in so much pain, his blood pressure was out of the roof. Patient is still in the hospital running tests. They are treating him with antibiotics. They think he may have a bug in his colon. To be on the safe side they are wearing gowns if someone goes into his room because they don't know what kind of bug/bacteria it is. He has not been able to provide a stool sample. The caller is waiting on a call from her husband's nurse. When querying weight caller states he's lost 10 pounds, he's 142 pounds if he's lucky. The patient received the first Covid 19 vaccine at around 4:15pm on 25Feb2021. At about 8:45 AM Saturday morning, 27Feb2021, the caller was still in bed her husband was getting in the bed and he said he didn't feel good, he never complains, so she knew something was wrong. He was making a bowl of cereal, he got the cheerios in the bowl and he went to get the milk and just that quick the pain came on just in the middle of his stomach. Kind of like in that area below your breast bone and ribs and rib cage, where it all meshes together. And the pain was just intense. He said it doubled him over and he broke out in a sweat. In the hospital he was given morphine and that didn't work, didn't help the pain. He was also given a "GI cocktail", asked caller what was in the "GI cocktail", she said something to numb him. Lidocaine was in the "GI cocktail" but she is not sure what else. GI cocktail took a long time before there was even a bit of relief. Caller states the nurse said don't look at the "GI cocktail" it's kind of gross. The caller found out that she can only go during certain hours to visit. Caller reports yesterday her husband looked better and his pain level was under control. He was given like hydrocodone or one of those "codone" medications and the nurse said he had not complained of pain in 7 hours. But his white blood cell count was higher at 19500. The caller believes the combination between hydrocodone for pain and maybe the antibiotic is starting to work. But the white blood cell count was still so sky high, eventually the white blood cell count would have to come down if the medications are working. He is more comfortable because of the pain meds. Her husband has had several different times when he has gotten all sweaty and is wanting something to wipe his forehead, feeling warm/hot. The sweating has come back but he never had a fever. She reports her husband's and her own arm were a little sore. Soreness was more noticeable by 26Feb2021. When querying the outcome of her husband's sore arm caller states since the stomach pain he hasn't said anything about the arm pain. She thinks his arm was much more sore than hers was because he was complaining quite about that. Caller reports when they were asking questions at the hospital, like how would he get this bug, how did he get it, did it come from food, like drive thru fast food. The nurse said it could have come from anywhere even medicine. Caller and her husband made sure that all the doctors, all three doctors and they were baffled and they mentioned that he had received the covid 19 vaccine. The nurse said that it could have come from the Covid 19 vaccine. And now her husband is scared to get the second shot. The caller reports she thought with the mrn or whatever it is, with how the vaccine was made she didn't think there was medicine in the vaccine that could cause a bug to grow. That it could be from some kind of medication. The timing is suspicious. She reports they stay out of the fray and try to reduce the fray and stay out of the numbers. They miss every one of their family and friends. The medications he is on, he has been on for a long time. He takes medication to control his blood pressure. The patient also had a CT scan, the main reason for the CT scan was to make sure there wasn't a blockage in his bowels, but the CT scan came back normal. Within the first few hours of being at the hospital, they took his blood 4 times. They were told immediately that he was going to be admitted. They also did a Covid test, it was negative, otherwise he would have been moved a to a different floor. There's more stuff, his oxygen, he had to be put on oxygen and also his blood pressure, it was 214 over something, it stayed really high because of his intense pain. And now that he's there he has to have something for being a diabetic. They tested his urine. He has not been able to provide a stool sample. They are waiting for a stool sample to determine the type of bug he has. The nurse told her there are 2 bugs that are dangerous and highly contagious. Anyone who goes into his room has to wear a special gown. He was told in the hospital that he was dehydrated. He couldn't get anything down. Also on Saturday, 27Feb2021 he threw up like 5 times. He has had some spells of nausea, like when your mouth gets wet. Apparently he was going to the bathroom a little bit he had 2 full doses by the time he was checked in to the hospital Monday, 01Mar2021 at 1200. His bowels were empty that's why they haven't been able to do the stool sample test. Event severe stomach pain and bug in his colon lead to emergency room and physician office visit. The patient was currently hospitalized. The patient underwent lab tests and procedures on unspecified dates which included computerised tomogram (CT): normal, covid test: negative, urine analysis: unknown results, white blood cell count: 18000, white blood cell count: 19500, blood pressure measurement: 214 over something (really high; was out of the roof), weight: lost 10 pounds. Therapeutic measures were taken as a result of terrible terrible stomach pain and bug in his colon. Events terrible terrible stomach pain, bug in his colon, broke out in sweats, feeling warm was recovering, event vomiting 5 times was recovered on 27Feb2021, event nausea was recovered on 01Mar2021, other events was unknown.; Sender's Comments: Linked Report(s) : US-PFIZER INC-2021253476 Same reporter/product, similar event and different patient;US-PFIZER INC-2021253512 Same reporter/product, similar event and different patient