body ache; fever; headaches; chills; This is a spontaneous report from a contactable consumer or other non hcp (patient). A 64-years-old male patient received second dose of bnt162b2 (PFIZER-BIONTECH COVID-19 VACCINE, Solution for injection, Lot Number and Expiration date was not reported) via an unspecified route of administration, administered in arm left on 03May2021 14:00 (at the age of 64 years old) as dose 2, single for COVID-19 immunization. Medical history included covid-19 from Feb2021 to an unknown date "mild and recovered in a week and Food allergy. The patient concomitant medications were not reported. The patient previously took first dose of bnt162b2 (PFIZER-BIONTECH COVID-19 VACCINE, Solution for injection, Lot Number and Expiration date was not reported) via an unspecified route of administration, administered in upper arm left hand side on 07Apr2021 8:30 (at the age of 64 years old) as dose 1, single for COVID-19 immunization and experienced pain in the hip, skin reaction and reports difficulty walking like he had arthritis that attacked his joints and knees and he used to have this from gluten products and so instead of taking glucocorticoids or steroids, he took Melatonin and his symptoms went away after 1-2 days after taking the Melatonin. Transferring agent states the caller reported from the 2nd dose of the Pfizer COVID Vaccine he had body aches, headache, chills and fever and stated he had covid in February with mild symptoms and he recovered from covid in one week; states the caller also read that people that had covid have like 140 times the protection and it elevates the immune system 140 times. Caller verified the information provided by the transferring agent and states he had no side effects for one week after the 1st dose of the Pfizer COVID Vaccine and after that his body was slanted 40 degrees and he had to take his weight to the backside of his body to balance and had pain in his hip. States the Melatonin he took was 3mg and is a neurotransmitter like serotonin and is the Simple Truth brand and has expiry date May2023. Caller states after the 2nd dose of the Pfizer COVID Vaccine, the chills and fever began 6-7 hours after the dose was administered and he had a headache and had body chills and a slight fever and was shivering with chills and under a double blanket with it 80 degrees outside. Reporter details: Caller states he was not a HCP but reads all the stuff and this is a special interest of his and he is an engineer. States he did not have any side effects after the 1st dose of the Pfizer Covid Vaccine for one week after that week then his body was slanted 45 degrees; states he cured himself and required no further treatment using the Melatonin and has some kind of memory of reading where some HCPs in another country administered Melatonin to moderate immune symptoms or people with immune systems and it attached to the lung cells; states some HCPs experiment with Melatonin and it worked in some patients; states he has no patient information or lot numbers of their vaccines or for Melatonin to provide. states both doses were administered to the upper arm of the left hand side and the 1st dose of the Pfizer COVID Vaccine was a scratch mark and a skin reaction so the 2nd dose was put a little up above that for the 2nd dose. Caller states he wanted to report this information and it was good and worked for him and maybe it would work for some people that experience the same difficulty with bone slanting or if the have a gluten sensitivity or autoimmune or something like that and he wanted to forward it to be useful to this group. On an unspecified date patient experienced body ache, fever, headaches and chills. The patient didn't received, any vaccine prior Vaccinations. Patient didn't received, any other vaccines within 4 weeks prior to the COVID vaccine. The outcome of the events was unknown.  No follow-up attempts are needed. Information about lot/batch number cannot be obtained.