Severe Headache; Muscle ache; Abdominal pain; lost his appetite; had a horrible feeling in his stomach, almost like the stomach flu; cold and had trouble maintaining his body heat; significant weight loss, he went from 218 lbs. to 210 lbs. so he lost 8 lbs. over a week; nausea in his stomach to the point where he couldn't eat and every time he did try to eat, it made him really sick; Sore Arm; Runny Nose with Mucous; This is a spontaneous report from a contactable consumer (patient). A 61-year-old male patient received the second dose of BNT162B2, via an unspecified route of administration, administered in Arm Left on 31Mar2021 (Batch/Lot Number: EN6206) (at age of 61-year-old) as single dose for COVID-19 immunisation. Medical history included Slightly Diabetic from 2009 to an unknown date. The patient stated he doesn't smoke or do drugs, or drink and he tried to eat good healthy food. The patient's concomitant medications were not reported. The patient previously took the first dose of BNT162B2 on 10Mar2021 (at age of 61-year-old) (Lot number: EN6200) and experienced sore arm and runny nose with mucous. The patient experienced sore arm on 01Apr2021, runny nose with mucous on 01Apr2021, nausea in his stomach to the point where he couldn't eat and every time he did try to eat, it made him really sick on 02Apr2021 , severe headache on 07Apr2021, muscle ache on 05Apr2021, abdominal pain on 02Apr2021, lost his appetite on 02Apr2021, had a horrible feeling in his stomach, almost like the stomach flu on 02Apr2021, cold and had trouble maintaining his body heat on 02Apr2021, significant weight loss, he went from 218 lbs. to 210 lbs. so he lost 8 lbs. over a week on 02Apr2021.Clinical course: The patient had his second shot last Wednesday, 31MAR2021, and he was calling to report his adverse side effects. The patient stated he had a sore arm which was okay and runny nose with mucous, which was  similar to his experience with his first shot, but then things went downhill. The patient stated with the first vaccine, he had arm pain that evening and it really wasn't bad. Stated there was an hour where it was really intense like he got shot up with something pretty powerful, he had a yucky feeling like when you catch the flu and get the first kick and then it went away. Stated he had a runny nose that first came on and lasted pretty much until he got the second vaccine, stated it got not so severe and heavy and decreased until the second shot and then went up again.  Stated with the second vaccine he lost his appetite and he developed nausea in his stomach to the point where he couldn't eat and every time he did try to eat, it made him really sick. Clarified he did not have vomiting or diarrhea. Stated he just had a horrible feeling in his stomach, almost like the stomach flu. The patient stated yesterday (07Apr2021)  was bad and he spent the last 2 days in bed. Stated while he was sick, her ate half a sandwich, that was all he could stomach and could eat. Stated he had significant weight loss, he went from 218 lbs. to 210 lbs. so he lost 8 lbs. over a week. Stated looking at his waist line he can tell he has lost weight. Clarified most of the pain was in his lower abdominal pelvis region, large intestine area.  Stated he had a severe headache yesterday (07Apr2021). Clarified that it has significantly improved. Stated he still felt  tension in his head but nothing compared to yesterday (07Apr2021) with the pounding migraine type of headache.  Stated he was cold and had trouble maintaining his body heat. The patient clarified the phases of his events mimic the flu but unlike the flu, he wasn't coughing, but he was having the physical pain of the flu but not the normal symptoms you would expect like heavy mucous, coughing, sneezing, like if he had the flu or a cold, but he felt like he was going through the flu. Stated he had muscle aches. States his back is normally okay but he injured it in the past and it started to hurt especially at the points that were injured. The patient  stated just before he called, his husband brought him some soup and he just finished that and he didn't feel immediately sick after eating something so it seems to have significantly improved. Caller states yesterday (07Apr2021) was the worst.  Stated he has isolated, he didn't have to go out and lives in the mountains, he only goes out for groceries and they bring it out to him. Stated  he did go to the hospital where he received the vaccine, he could have picked up something at the hospital. Stated he hasn't exposed himself to anything, no bars, gym, church, he is not hanging out with anyone, he maintained as restrictive environment as one could have and he wears a mask when they are putting the groceries in his vehicle.  Restated that yesterday (07Apr2021) and last night were the worst and everything has significantly improved. Treatment: Been in bed for the last 36 hours, today (08Apr2021)  he is actually up enjoying a beautiful day. The events did not result in emergency room visit or physician office visit. AE(s) following prior vaccinations: Every time got flu shot, and he didn't get them anymore, he got sick as a dog for a couple of weeks, with yellow phlegm. Stated he thought it was supposed to protect him, why is he so sick and hacking up phlegm? Stated maybe he is one of those people that doesn't do well with vaccines. Stated this is a new type of vaccine MRNA and it could just be him. Stated not all vaccines, it seems like flu vaccine kicks him in the keister but has had other vaccines like the MMR and no issues with that, no pain no nothing. The outcome of events Sore Arm was resolved on 03Apr2021 and Runny Nose with Mucous was resolved on 06Apr2021 and of the rest of events was Resolving.  No follow-up attempts are possible; No further information is expected.