Doubled over in stomach pain; Abdominal pains; This is a spontaneous report received from a contactable reporter(s) (Consumer or other non HCP) from medical information team for a Regulatory Authority. Other Case identifier(s): Regulatory Authority.  A female patient received bnt162b2 (COMIRNATY) (Batch/Lot number: unknown) as dose number unknown, single for covid-19 immunisation. The patient's relevant medical history and concomitant medications were not reported. The following information was reported: ABDOMINAL PAIN UPPER (non-serious), outcome "unknown", described as "Doubled over in stomach pain"; ABDOMINAL PAIN (non-serious), outcome "unknown", described as "Abdominal pains". The events "doubled over in stomach pain" and "abdominal pains" were evaluated at the emergency room visit.  Additional information: Doctor and ER does not know what was going on either. During call, caller mentioned that his pharmacist said there was a lot of stuff going on. His pharmacists friend ended up doubling over in the Emergency Room with stomach pain and they did not know what to do for her. 77 years old consumer called to inform about the adverse reactions he had with the Pfizer-BioNTech Covid19 Vaccine. Per caller, he and his wife had the vaccine both doses, his wife had not too much reaction to the 1st dose but on the 2nd dose, his wife developed a little fever, felt very tired, went to bed early, the next day she woke up and she was fine, and she's been fine ever since. Per caller, he had his 1st shot on 07Jul2021 and about 3 days after, he had really bad pain in his legs and joint from his hips down to his feet that lasted for 10 days and went away. He had his 2nd shot on 28Jul2021, he was feeling good, his legs are working okay, he hasn't been able to use his legs a lot because they hurt too much to use for 10 days. After getting the 2nd dose, he didn't feel any reaction for 3 days, but then his muscles and joints began to hurt again, mainly the hip joints, tinnitus started in his ears, that went on. He was on his 15th week of pain in his legs, and it had been getting worse and at around 12 weeks, his muscles and legs began to twitch. He was desperate after 17 weeks of pain. Per caller, the Primary Care doctor doesn't have any idea on what medication he should be taking. He was taking Tylenol and Advil for 1 to 3 a day and it helped a lot, also taking Gabapentin for 2weeks, 100mg, up to 4 a day. Tylenol does not touch it. Patient took 200mg of Gabapentin today and will take another 100mg at 11:30 at night when he goes to bed. There were few people coming in who had a rough time with the vaccine and have it reported to VAERS. Caller wanted to find out if there was some medications or treatments that was being given to people who are having these reactions. A couple of weeks ago his muscles were hurting so bad, that it was incapacitating him and could not walk, and the leg muscles from his hip to his feet were twitching. Most of the twitching has dissipated, but if he walks around too much they start to ache more. He was cutting branches outside before this. Pharmacist said he has a lot of different types of people coming in with pain since the shot, and he had one friend of his, because he 40 to 45 years old. His friend, a woman got such severe pains in her stomach that she went to the emergency room, and they did not have any specific treatment on what they could do for her. Pharmacist wanted to know if there were any medications that Pfizer would know about, Patient took fish oil, spoke to an advisor, and he recommended fish oil which patient was up to 7000mg a day now, and turmeric was very good antioxidant for inflammation. The doctor was looking for medications that may be given to people with muscle pain, because he said about 14 to 15 percent of people have this problem, but maybe not as long as him. People say that hot baths with Epsom salt helped. His wife had mild reaction to the vaccine, she had a mild fever, she felt tired, and went to bed, the next day she was fine. When a patient has reaction to a vaccine it usually meant they are building antibodies, but from what he has read it should stop after 10 weeks.  Follow-up attempts completed. No further information is expected.