This is a spontaneous report received from contactable reporter(s) (Consumer or other non HCP) from medical information team. The reporter is the patient. An 81-year-old male patient received BNT162b2 (BNT162B2), as dose 1, single (Batch/Lot number: unknown), in right arm, as dose 2, single (Batch/Lot number: unknown), in right arm, as dose 3, single (Batch/Lot number: unknown), in right arm and on 04May2022 as dose 4 (booster), single (Batch/Lot number: unknown) at the age of 81 years, in right arm for Covid-19 immunisation. The patient's relevant medical history included: "Chronic Lymphatic Leukemia", start date: 15Mar2019, stop date: 15Mar2019, for which he does not need any medication, hospitalization, chemo, surgery nor radiation. He mentioned he is in some support groups; "compromised immune status" (unspecified if ongoing); "respiratory illness" (unspecified if ongoing); "genetic/chromosomal abnormalities" (unspecified if ongoing); "endocrine abnormalities (including diabetes)" (unspecified if ongoing); "Diabetes" (unspecified if ongoing), notes: endocrine abnormalities (including diabetes); "obesity Illness" (unspecified if ongoing); "genetic allergy to hard shell crustaceans" (unspecified if ongoing); "Lobsters, crabs, even shrimp allergy" (unspecified if ongoing); "break out in hives" (unspecified if ongoing), If he ate a shrimp cocktail, it would cause a reaction. He tried Lobster once and then he immediately broke out in hives. He has not ordered or had it since. No family history. There were no concomitant medications. The following information was reported: AXILLARY PAIN (hospitalization), outcome "recovering", described as "right arm pit sac of fluid"; DECREASED APPETITE (hospitalization), outcome "recovering", described as "loss of appetite"; DYSPNOEA (hospitalization), outcome "recovering", described as "shortness of breath"; ASTHENIA (hospitalization), outcome "recovering", described as "low energy/ completely wiped out"; SOMNOLENCE (hospitalization), outcome "recovering", described as "sleepy/ drowsy"; LOSS OF CONSCIOUSNESS (medically significant), outcome "recovering", described as "knocked him out for a couple of days". Therapeutic measures were not taken as a result of axillary pain, decreased appetite, dyspnoea, asthenia, somnolence, loss of consciousness. Clinical course: The second as well as the previous booster shots knocked him out for a couple of days after having them. He hopes he is not asked to go through a third booster. It was a nightmare of 72-84 hours. He went back to Hospital in the midst of travail after 2nd booster. He refused to take the booster at so called neighborhood minute clinics. He wanted to be at a medical center when receiving them. He feels like he just got kicked off a bronco at the rodeo and now that he has his breathing and health back, he wanted to call and report it. He said tomorrow will be a week ago that he had the 2nd booster dose. He confirmed his symptoms were the same with each dose. All of them were injected on the right arm near shoulder. There should be 4 needle marks. No emergency room visit. The patient received any other vaccines within four weeks prior to the vaccination was reported as none. Prior to the vaccination, the patient was not diagnosed with COVID-19. he stated he does not have energy to look for anything. He is just recovering enough to call. The information on the batch/lot number for BNT162b2 has been requested and will be submitted if and when received.