Very, Very dizzy and had to hold on/lightheadedness/dizziness; Was a little warm/Felt a little warm; Weakness; This is a spontaneous report received from a contactable reporter(s) (Consumer or other non HCP) from medical information team. The reporter is the patient. Other Case identifier(s): US-PFIZER INC-202101368076 (PFIZER).  A 90 year-old male patient received bnt162b2 (BNT162B2), administration date 12Oct2021 (Lot number: EW0178, Expiration Date: 30Nov2021) at the age of 90 years as dose 1, single for covid-19 immunisation. Relevant medical history included: "heart was pounding", start date: 12Oct2021, stop date: 12Oct2021, notes: 15 minutes after the vaccine he was fine. There were no concomitant medications. Past drug history included: Claritin for swelling of my face, notes: Still having face swelling, the doctor calling it an allergy. He took the Claritin, it didn't help anything.; Claritin for swelling of my throat, notes: Still having throat swelling, the doctor calling it an allergy. He took the Claritin, it didn't help anything. The following information was reported: DIZZINESS (non-serious) with onset 13Oct2021, outcome "not recovered", described as "Very, Very dizzy and had to hold on/lightheadedness/dizziness"; FEELING HOT (non-serious) with onset 13Oct2021, outcome "not recovered", described as "Was a little warm/Felt a little warm"; ASTHENIA (non-serious) with onset 13Oct2021, outcome "not recovered", described as "Weakness". Therapeutic measures were not taken as a result of dizziness, feeling hot, asthenia.  Additional information: Patient Stated that he has no other symptoms listed on the fact sheet.  No muscle pain, chills, or swelling. Consumer stated, No I don't lot number of Claritin have it with me. Patient was not using any other products. He received the Pfizer COVID 19 vaccine yesterday his first dose, he said that he slept really good but he felt a little warm and his main thing is when he tried to get up this morning he was feeling dizzy very dizzy, he says he was a little dizzy, he have had a little, he says he had a this light headedness before the vaccine and he wanted to know how long will the dizziness last and then he also wanted to know how much the weakness, when the weakness will eventually go away in a day or two. But he also said before he had a shot he has a swelling of his face in the morning before he get out of bed, the doctor calling it an allergy, he said he was taking Claritin but it didn't do anything, he says may be it was an allergy, since he took Claritin it didn't help anything, he says may be its an allergy and it won't go away, he says there was swelling of his face and throat but he can't blame that on vaccine he said, the swelling of face and throat was about the same not any different than before. Transferring agent further stated, He said he keeps checking himself yesterday, he says yesterday but not today I kept checking myself my heart was pounding a little bit but not now, he says he feels pretty good today, he said he feel it will go away and he said that yesterday they kept in 15 minutes after the vaccine he was fine, hungry he ate, he was fine just the dizziness when he got out the bed today and he just stood up and few minutes ago and he says he was a little light headed while standing now. Consumer stated he didn't receive any treatment. Patient didn't take any vaccination   Follow-up attempts are completed. No further information is expected.