Sinus infection; Headaches; Arm started to hurt a little bit; This is a spontaneous report received from contactable reporter(s) (Consumer or other non HCP) from medical information team. The reporter is the patient. Other Case identifier(s): US-PFIZER INC-2021498627 (Pfizer).  A 38 year-old male patient received bnt162b2 (BNT162B2), administered in arm left, administration date 15Apr2021 (Lot number: ER8731) at the age of 38 years as dose 1, single for covid-19 immunisation. Relevant medical history included: "Asthma" (unspecified if ongoing), notes: Verbatim: asthma; "Flu" (unspecified if ongoing), notes: was diagnosed with a flu in January, around 01January; "shortness of breath" (unspecified if ongoing), notes: He already had shortness of breath for 2 and a half months. Concomitant medication(s) included: ADVAIR taken for asthma. The following information was reported: HEADACHE (non-serious) with onset 15Apr2021, outcome "not recovered", described as "Headaches"; PAIN IN EXTREMITY (non-serious) with onset 15Apr2021, outcome "recovered" (16Apr2021), described as "Arm started to hurt a little bit"; SINUSITIS (non-serious), outcome "unknown", described as "Sinus infection". The event "sinus infection" was evaluated at the physician office visit. Relevant laboratory tests and procedures are available in the appropriate section. Therapeutic measures were taken as a result of headache, sinusitis.  Additional Information: Patient got the vaccination around noon or before noon, the same his arm started to hurt a little bit and his head hurt around 7 pm or so a little bit later. Since this day, since 15Apr2021, there were only like three days where he did not have a headache. Those three days he could still feel his head pulsating a little bit. He was having a constant headache and taking Ibuprofen and Tylenol and drinking a ton of water. After the vaccine, he drank a lot of water and was still having a lot of headaches. The patient informed that he was 175 or 180 pounds or something.15Apr2021 was the first shot, and then he got the headaches. It has been ongoing and the same as he has had overall. Patient has taken Ibuprofen and Tylenol and a ton of water - an ocean of water as teatment. The patient has had since maybe he was 15 or 12 years old or something. He has had it a long time. He was from abroad and was taking inhalers and steroids for a long time. When he moved to this country, he went to a doctor for symptoms of asthma that had gone away when he was taking the Singulair. He was originally on Singulair 10 mg once a day. It was fine, and he felt fine and was working out. He had no breathing problems. The patient visited physician office and physician prescribed antibiotics and steroids to clear his sinuses for three weeks. He was taking an antibiotic for the sinus infection so it should go away for sure. He has been on it for 2 weeks. He got the antibiotics for three weeks it has to be related to the vaccine unless he has a tumor. Headache was just weird because from noon till like 7 pm nothing, then 7 pm headache and then he has a constant headache for such a long time. He has never had a headache for three weeks every day, and it drives him nuts. The patient didn't recieved any other vaccinations within four weeks prior to the first administration date of the suspect vaccine. Patient received Pfizer-BioNTech COVID-19 Vaccine first dose on 15Apr2021 and experienced: "a constant headache all the time", his second dose is scheduled on Thursday 06May2021.  No follow-up attempts are possible. No further information is expected.