Swelling that developed on the right side; thoracic area; This is a spontaneous report received from contactable reporter(s) (Consumer or other non HCP). The reporter is the patient.  A 69-year-old male patient received BNT162b2 (BNT162B2), on 13Aug2021 at 13:00 as dose 1, single (Lot number: EW0164) at the age of 69 years intramuscular, in left arm for covid-19 immunisation. The patient's relevant medical history included: "A-Fib" (ongoing), notes: A-Fib Start-3 almost 4 years ago and reason on blood thinners; "Pain" (unspecified if ongoing), notes: On pain killer; "Diabetic" (unspecified if ongoing), notes: he was on diabetes and blood pressure medication; "Blood pressure disorder" (unspecified if ongoing), notes: he was on diabetes and blood pressure medication. Concomitant medication(s) included: ELIQUIS taken for anticoagulant therapy; PREGABALIN taken for pain; TRAMADOL HCL taken for pain. Vaccination history included: Flu shot (DOSE NUMBER UNKNOWN, MANUFACTURER UNKNOWN; Lot Number: unknown), administration date: 2021, for Immunization. The following information was reported: SWELLING (non-serious) with onset 23Aug2021, outcome "not recovered", described as "Swelling that developed on the right side; thoracic area". Relevant laboratory tests and procedures are available in the appropriate section.  Additional information: The # administered the vaccine over 1.5 year ago. He has been dealing with painful adverse event. He clarified as ten days after the first vaccination he had swelling that developed on the right side: thoracic area. It showed up overnight. After 1.5-year half, a couple months ago he had a mild stroke and anemia. He had photos and the swelling was very visible. Patient commented that he had so many doctors and cannot remember the first name. Swelling was larger and worse. He then commented he had additional details, but when attempted to clarify details he did not elaborate. The swelling was on the right side. Time noticed: 8:00AM, checked self every morning it was not there the day before. He was when alarmed showed up overnight. Later added, since the stroke the swelling had gone over to the left side and was visible. He had many photographs, and the facility has no idea what it was. Treatment was none. Stroke was clarified as a mild/ischemic stroke. When attempted to clarify outcome commented it effected his left leg. He had almost fully recovered. However, it aggravated the swelling at about 4 AM on Sunday night. That Friday he was at the facility and the center contacted him concerned about his hemoglobin. He was informed to stop taking his blood thinner. He did, then that Sunday he had a stroke. Clarified the blood thinner to be the brand, Eliquis. Clarified as in orange pharmacy filled bottle, lot and exp unknown. Referred to as Apixaban but confirmed as Eliquis and took the brand with NDC: 71610-0662-09 and discard after 07Dec2023. When going to get Eliquis commented he just got off the walker 3 days ago and now back on cane. Regarding anemia, he was unable to provide. Commented it had been building up for months. He had small internal bleed in the stomach for months. The bleeding went on for months and months. They did lab work up at facility and told him hemoglobin was dangerously low and needed to the nearest hospital. Confirmed was admitted to the hospital. The anemia was from an internal bleed. Treatment was 2 blood transfusion. Hospitalization was about four days. Confirmed everything was fine and all the numbers were normal. On internal bleeding, he commented all of this would be guessing. Was informed the internal bleeding probably started at the time when he first started feeling extreme fatigue which would have been 4-5 months preceding the anemia. It gradually occurred over time which gave extreme fatigue. Happened over long period of time. Treatment was catharized. Internal bleeding on the operating table. Had the surgery on the 3rd day hospitalized in Aug2022 due to anemia. On the 4th day he was discharged. The lab work, everything should be back to normal. Commented he takes 18 pills a day. Declined to provide full details of concomitant medications. It would be a long list. However, he was on no opioids. He only took pain killers, details captured as provided; Tramadol and Lyrica. Later added he was on diabetes and blood pressure medication; no additional details provided. They have many tests, and they have permission to access medical records. They have been looking at this and trying to figure out what it was. They won't make connection to vaccine until they know what it was. Reporter was worried this thing will kill him and won't find out what it was. The swelling was spreading to the other side. It was extremely visible, and very alarming. Two weeks after the second vaccine, swelling doubled its size. He might have had the flu shot. If he had one, that would be it. Added, now they wanted to schedule a Shingles shot a couple months ago but wanted to wait in regard to what was going on now. He was refusing anymore vaccines.; Sender's Comments: Linked Report(s) : US-PFIZER INC-202300074056 same reporter/patient/drug, different doses/AE;