elevated WBC counts; voice is very raspy.; his bone marrow is not working great; COVID-19 Vaccine caused an allergic reaction; sinus infection; joint pains; diarrhea; This is a spontaneous report from a Pfizer sponsored program. A contactable consumer and Other Health Professionals reported that a 73-year-old of male patient  received BNT162B2  (PFIZER-BIONTECH COVID-19 VACCINE), dose 2 via an unspecified route of administration, administered in Arm Left on 02Feb2021 (Lot Number: EL9263) (at age of 72-year-old) as DOSE 2, SINGLE for covid-19 immunisation.  Medical history included high blood pressure. There was no other vaccine in four weeks. Concomitant medication included lisinopril. The patient previously took the first dose of BNT162B2 administered in Arm Left on 12Jan2021 (Lot number: EL3246) at age of 72-year-old for COVID-19 immunization.  The patient experienced sinus infection (sinusitis) (hospitalization) on Apr2021, joint pains (arthralgia) (hospitalization) on Apr2021, diarrhea (diarrhoea) (hospitalization) on Apr2021, elevated WBC counts (white blood cell count increased) (hospitalization) on an unspecified date, voice is very raspy. (dysphonia) (hospitalization) on Apr2021, his bone marrow is not working great (bone marrow disorder) (hospitalization) on Apr2021 , covid-19 vaccine caused an allergic reaction (hypersensitivity) (hospitalization) on Apr2021.  The patient didn't start to get sick until April 2021. It began with sinus infection, joint pains and diarrhea. He was admitted to the hospital for 8 days. Caller also inquired if there have been any reports of elevated WBC counts. Patient was experiencing side effects a month after second dose of Pfizer COVID-19 vaccine. Ended up in hospital for 8 days. White blood cell count spiked up. Received second dose Feb2021. Didn't start getting sick until apr2021. Began with sinus infection, diarrhea, and then joints started to hurt. Wound up in hospital. Had many tests taken in the hospital. All of sorts of tests completed after he was released. Couldn't figure out what's wrong. Patient still being tested. Three doctors said it was a result of the vaccine. Sinus infection: Outcome: Lungs are clear, but still has a mucus drip and voice is very raspy. Diarrhea: Subsided. End date: ended at the end of his hospital stay. Joint pain:  Is just subsiding now. Was put on 40mg prednisone.  When it started, joints were very bad. Couldn't get dressed, button anything, couldn't walk, was incapacitated. Still hurts, but Prednisone is making the pain subside. It has gotten better because of the Prednisone. Discharged from hospital either 01Jun2021 or 02Jun2021. Caller stated her COVID-19 Vaccine card is probably the same as his because they both got theirs on the same day. No further details provided. Besides all of the tests they did, a colonoscopy was performed. Doctors saying this infection attacked his colon and kind of shut down his kidneys. Originally doctors were looking at parasite, but came up empty on that. Did all sorts of GI test and that stuff. Is on a new medication for high blood pressure. Hospital couldn't figure out what the mystery infection was. Really thought it was a parasite and everything except the COVID-19 Vaccine. Every time a test was performed, it was all negative. Went to hematologist who did various tests and identified his bone marrow is not working great nor is his immune system. Has some kind of abnormal protein being made in his bone marrow. Going for a bone marrow extraction. A theory from his medical team is that there was some kind of infection brewing and the COVID-19 Vaccine caused an allergic reaction that whacked it all out. Started Losartan Potassium yesterday, had nothing to do with it.Stopped Lisinopril 5mg. Has no NDC/LOT/EXP because it was discarded. Was told the Losartan Potassium has less allergic reactions. The outcome of the events sinus infection, joint pains, 'voice is very raspy'  was resolving , of diarrhea  was resolved on Jun2021, of the rest of events was unknown.