my left arm when I got the shot was sore for almost a week; the rest of my body was sore like I am not like when you got the flu/My body was hurting specifically my left arm and I had a constant headache; I had a constant headache; your muscles are sore and you are weak; your muscles are sore and you are weak; Just didn't feel well like I had the flu.; I felt awful like I had the flu.; This is a spontaneous report received from a contactable reporter (Consumer or other non HCP) from medical information team. The reporter is the patient. A male patient received bnt162b2 (BNT162B2), administration date 24Apr2021 (Batch/Lot number: unknown) as 2nd dose, single for covid-19 immunisation. The patient's relevant medical history and concomitant medications were not reported. Vaccination history included: Bnt162b2 (dose 1, single), administration date: 31Mar2021, for COVID-19 immunization. The following information was reported: PAIN IN EXTREMITY (non-serious) with onset Mar2021, outcome "unknown", described as "my left arm when I got the shot was sore for almost a week"; PAIN (non-serious) with onset Apr2021, outcome "unknown", described as "the rest of my body was sore like I am not like when you got the flu/My body was hurting specifically my left arm and I had a constant headache"; HEADACHE (non-serious) with onset Apr2021, outcome "unknown", de-scribed as "I had a constant headache"; MYALGIA (non-serious), ASTHENIA (non-serious) all with onset Apr2021, outcome "unknown" and all described as "your muscles are sore and you are weak"; INFLU-ENZA (non-serious) with onset Apr2021, outcome "unknown", described as "Just didn't feel well like I had the flu."; INFLUENZA LIKE ILLNESS (non-serious) with onset Apr2021, outcome "unknown", de-scribed as "I felt awful like I had the flu.".  Additional information: Transferring agent stated, "I have a consumer on the line. He did get his shot and in different zip code. So, he recently got his, this is regarding the Pfizer BioNTech covid-19 vaccine. He recently got his second shot, and he says he was having no symptoms after the first dose, but he was having side effects after the second dose. He has not let me know what those side effects are, but he said they lasted for almost a week, and he wanted to call and provide his experience with someone. He did have some question for me, and I answered them to what information we have available but that's really all the information he has given me regarding his symptom. One other thing, one more thing he said that he is trying to figure out if he has something called long covid. He feels like he might have that. Just to let you know, he has been speaking with all day, so he is little frustrated about being on the long call. So just wants to give you heads up for that." Product name as Confirmed as Pfizer BioNTech covid-19 vaccine. Consumer stated, "I had side effects, yes. Yes, my left arm when I got the shot was sore for almost a week. The rest of my body, I felt like I had the flu, the rest of my body was sore like I am not like when you got the flu, your body gets all sore and your muscles are sore, and you are weak. okay, I got that type of feeling and I had a constant headache, and all of this lasted for probably I am going to say 5-6 days maybe even I think when I woke up a week later it was on. So probably 5 or 6 days. Headache, muscle pain just didn't feel well like I had the flu. Yes, after the Pfizer vaccine 2 different shots. I had my first one on March 31st and the second one was on April 24th. I had been hearing that on television and radio and news that you guys are trying to get feedback from the people what our symptoms were, so that's were mine were. And there's something telling me, and I am not sure and understood of all, but I think I want to get tested, is what I am thinking now. That I might have long covid and I am concerned about that, but I am not really sure. I am not sure. I am not sure, but I have been vaccinated. I gave you the dates there and I did have some issues for the week. The issues I was having are not as severe as today were for the week prior after the shot. So for the 6 or 7 days, 5, 6, 7 days after the second shot, felt awful. I felt like I had the flu. I was weak. My body was hurting specifically my left arm and I had the constant headache. Consumer stated, "I had side effects, yes. Yes, my left arm when I got the shot was sore for almost a week. The rest of my body, I felt like I had the flu, the rest of my body was sore like I am not like when you got the flu, your body gets all sore and your muscles are sore, and you are weak. okay, I got that type of feeling and I had a constant headache, and all of this lasted for probably I am going to say 5-6 days maybe even I think when I woke up a week later it was on. So probably 5 or 6 days. Headache, muscle pain just didn't feel well like I had the flu. Yes, after the Pfizer vaccine 2 different shots. I had my first one on March 31st and the second one was on April 24th. I had been hearing that on television and radio and news that you guys are trying to get feedback from the people what our symptoms were, so that's were mine were. And there's something telling me, and I am not really sure and understood of all, but I think I want to get tested, is what I am thinking now. That I might have long covid and I am concerned about that, but I am not really sure. I am not really sure. I am not really sure, but I have been vaccinated. I gave you the dates there and I did have some issues for the week. The issues I was having are not as severe as today were for the week prior after the shot. So, for the 6 or 7 days, 5, 6, 7 days after the second shot, felt awful. I felt like I had the flu. I was weak. My body was hurting specifically my left arm and I had the constant headache."  No follow-up attempts are possible. No further information is expected.