Headache; 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.  A 59 year-old male patient received bnt162b2 (BNT162B2), intramuscular, administered in arm left, administration date 24Aug2021 16:30 (Lot number: EC3182) at the age of 59 years as dose 1, single for covid-19 immunisation. The patient had no relevant medical history. There were no concomitant medications.  The following information was reported: HEADACHE (non-serious) with onset 25Aug2021 06:00, outcome "not recovered", described as "Headache". The event "headache" was evaluated at the physician office visit. Therapeutic measures were taken as a result of headache.  Additional information: The patient had no history of all previous immunization with the Pfizer vaccine considered as suspect. The patient had no additional Vaccines Administered on Same Date of the Pfizer Suspect. The patient had no prior Vaccinations within 4 weeks. Patient had no Medical History (including any illness at time of vaccination): Provide other relevant medical history including but not limited to these conditions: Diagnosed allergies, compromised immune status, respiratory illness, genetic/chromosomal abnormalities, endocrine abnormalities (including diabetes) and obesity. The patient had no Relevant Tests: List other relevant diagnostic and confirmatory test results for event(s), for example, from blood tests, cerebrospinal fluid culture, bacterial sero-type, diagnostic imaging, (e.g., chest X-ray, MRI). The patient received first dose of the Pfizer Covid-19 vaccine 21 days/ 3 weeks ago on 24Aug2021. He did not have immediate side effects. He woke up the next day morning with a headache which was standard and as expected. He has looked it up online, and the description is very similar. Headache started at the point of a working the day following the vaccination and has persisted now for 8 weeks (very few days has it been unnoticeable). Most days require some OTC pain meds to cut the pain but it does not fully relieve the symptoms. Patient has been taking Advil (Ibuprofen) and Naproxen and stated that the headache is getting better but still has complaints of a headache that happens later on in the day. The Advil didn't seem to affect the headache. The caller doesn't have the UPC / lot/expiration for the Advil. He then took over the counter Naproxen. Caller doesn't have the UPC/lot/expiration for the Naproxen. The most he took of the Naproxen was a double up. The headache has never been terrible just extremely annoying. It is typical. He doesn't have the headache when he gets up now. It progresses later in the day. Like in the last week, the closer he would get the headache around 10:30-11am. He gets up at 5am. So it happened 5-6 hours after he woke up. He is not on medications. The headache has continued. So for almost 21 days he has had this headache. It has been better in the last couple of days. They are not severe as the time of following the vaccination but continues to persist. Because of the headaches he had not taken the 2nd vaccination. Patient is due to receive his second dose of the Pfizer Covid-19 vaccine on 14Sep2021 but has decided to wait a few more weeks to receive it.  Patient stated that he has read that headache is a side effect of the Pfizer Covid-19 vaccine and heard indirectly that it lasts considerably longer. Patient asked that if there is information about how long a headache lasts as a side effect of the Pfizer Covid-19 vaccine and should he expect that a headache to happen again when he receives the second dose of the Pfizer Covid-19 vaccine?  Follow-up attempts completed. No further information is expected.