When he went to the bathroom it was like diarrhea, watery, and had blood; He also had pains in his stomach; he could hardly move; Last night he sweated, the sheets were all wet; Pain on the right side of his back/ night before he had it on his left side/ he moved it hurt so bad; He only slept for 4 hours; Fever and chills; Fever, temperature was only 100; his blood pressure went up; Stomach problems; This is a spontaneous report from a contactable consumer (patient). A 68-year-old male patient received first dose of bnt162b2 (Pfizer-Biontech COVID-19 Vaccine, Lot number: EL9265), via an unspecified route of administration at the left arm on 27Jan2021 at a single dose for covid-19 immunization. The vaccine was administered in a hospital. Medical history included ongoing high blood pressure and ongoing cholesterol. Ongoing concomitant medications included lisinopril for high blood pressure, amlodipine for high blood pressure and atorvastatin for cholesterol. The patient previously took montelukast and dries up his sinuses. On 27Jan2021 he received the first dose in the afternoon about 5 o'clock or a little after. It started with stomach problems on 27Jan2021. He kept feeling like he had to go to the bathroom all throughout the night on 27Jan2021. He slept through the night and was okay. He had a little something going on in his stomach. The next day (28Jan2021), that evening, around 7pm he had fever and chills and his blood pressure went up. His temperature was only 100. It never went over that. And he was having to go to the bathroom. In the morning, it was fine but at night he was having to go. Normally he has a bowel movement in the morning. When he went to the bathroom it was like diarrhea, watery, and had blood. It was not dried blood, but blood. It happened twice. He then had to go again. The same thing happened again and then it stopped. He also had pains in his stomach. He went to sleep and the next day he went to the bathroom the first thing in the morning and it was normal. The reported also mention that stomach problems were worse on 28Jan2021. He only slept for 4 hours on 28Jan2021. The next day, 29Jan2021 he was fine. He only had a little bit of a fever and a little bit of chills. Then the chills and fever went away that day. He did not feel ill or weak at all when this was happened which is why he did not go to the doctor. He did not feel that the symptoms were bad enough. He felt okay once they were over. He had to get it out.  On 31Jan2021, he also had fever and pain on the right side of his back. It was a really sharp pain and he could hardly move. The night before he had it on his left side. He made himself get out of bed. When he moved it hurt so bad. On 31Jan2021, he sweated, the sheets were all wet. He slept 4 hours. He has been using ice packs and icing it down. The pain on the right side has gone away but the pain on the left side is still there. It has improved and there is only a little pain. He iced it down first thing this morning. He walks everyday. The outcome of the event diarrhea bloody was recovered on an unspecified date, stomach problems and his blood pressure went up recovered on 28Jan2021; pain back was recovering; outcome for all other events was unknown.