Experiencing like serious chronic fatigue; Felt symptoms of flu, not fully but like symptoms of it; Feeling too low; Activity levels went down; I was not able to find energy workout; I was not able to find an energy to workout; I took the first one on April 07, I was fine I took the second dose on April 19; This is a spontaneous report received from a contactable reporter(s) (Consumer or other non HCP). The reporter is the patient.  A 46 year-old male patient received bnt162b2 (BNT162B2), administered in arm left, administration date 19Apr2021 (Batch/Lot number: unknown) at the age of 46 years as dose 2, single for covid-19 immunisation. Relevant medical history included: "Hypertension" (unspecified if ongoing), notes: Verbatim: Hypertension. Concomitant medication(s) included: LISINOPRIL taken for hypertension. Vaccination history included: Bnt162b2 (Dose number: 1, Location of injection: Left arm), administration date: 07Apr2021, when the patient was 46 years old, for COVID-19 immunization.  The following information was reported: FATIGUE (non-serious), outcome "not recovered", described as "Experiencing like serious chronic fatigue"; INFLUENZA LIKE ILLNESS (non-serious), outcome "recovered with sequelae", described as "Felt symptoms of flu, not fully but like symptoms of it"; DEPRESSED MOOD (non-serious), outcome "recovered with sequelae", described as "Feeling too low"; ASTHENIA (non-serious), outcome "recovered", described as "Activity levels went down; I was not able to find energy workout; I was not able to find an energy to workout"; INAPPROPRIATE SCHEDULE OF PRODUCT ADMINISTRATION (non-serious) with onset 19Apr2021, outcome "unknown", described as "I took the first one on April 07, I was fine I took the second dose on April 19".  Additional information: The reporter stated that she didn't have, he just knew that it was the Pfizer vaccine but he do not have the his vaccine card in front of him." He was calling to give (sentence incomplete), he had a questionnaire for feedback after he took both vaccinations and also the booster and wanted to report the feeling of chronic fatigue after taking the second Pfizer vaccine and also currently, the booster which he took on 20Oct2021 and have experiencing like serious chronic fatigue. The patient took the first one on 07Apr2021, he was fine and took the second dose on 19Apr2021 and then he felt fatigue, he felt symptoms of flu, not fully but like symptoms of it, it was like for 3 days, he was feeling too low and after that subsided. So, that was from April to July, from 19Apr2021 to like early July, he was fatigued for those months. Also, his activity levels went down, he was not able to find an energy to workout and so, the energy came back early July and that was when he was approved to take the booster. So, just recently on 20Oct2021, he took it and from that I had the same symptoms like the second one he took and then after it, this lingering effect from it and there was a little bit of pain before the fatigue. So, like it was really hard just getting that on his work day feeling really sluggish and fatigued." He stated that, he was a Healthcare provider, he go to a pharmacy." (not clarified further, hence reporter type captured as- Consumer or other non health professional). So, the first time, the first, initial were both in his left arm and the last one he just had in his right arm. He did not take any treatment, only took Vitamins. He was taking one a day Vitamins previously before vaccinations and still after, that was the part of his everyday regimen to take his one a day ,vitamins."  The lot number for bnt162b2 was not provided and will be requested during follow up.; Sender's Comments: Linked Report(s) : PFIZER INC-202101721611 same patient and drug, different event separated in time