horrific mood swings; After 9 weeks he still feels awful and getting raging headaches; Has lost a bunch of weight, but has gained it back; he couldn't eat; Arm was still hurting from the first one; Unable to work and does not feel comfortable to drive, feels like he is high and can't; it has been almost 9 weeks after and he is still feeling some weakness (couldn't even drive).; felt it go up in the arm and into his head almost instantaneously; sweating/Hands sweat all day and night after getting the first shot and second shot.; This is a spontaneous report from a contactable consumer or other non hcp. A 54-years-old male patient received BNT162B2 (PFIZER-BIONTECH COVID-19 VACCINE, formulation: Solution for injection, Batch Number/Lot Number: EH9899), dose 1 via an unspecified route of administration, administered in Arm Left on 21Dec2020 (at the age of 54-Years-old) as single dose for COVID-19 immunisation. Facility where the most recent COVID-19 vaccine was administered reported as hospital. Vaccine was not administered at military facility. The patient medical history and concomitant medications were reported. History of all previous immunization with the Pfizer vaccine considered as suspect was not available. The patient experienced it has been almost 9 weeks after and he is still feeling some weakness (couldn't even drive) on an unspecified date, felt it go up in the arm and into his head almost instantaneously on 21Dec2020, sweating/hands sweat all day and night after getting the first shot and second shot, horrific mood swings, after 9 weeks he still feels awful and getting raging headaches, has lost a bunch of weight, but has gained it back, he couldn't eat, arm was still hurting from the first one and unable to work and does not feel comfortable to drive, feels like he is high and can't on an unspecified date. The patient underwent lab tests and procedures which included sars-cov-2 test: negative on 23Dec2020 and weight: lost a bunch of weight, but has gained it back on an unspecified date. Got vaccine just above the bicep in the left arm. If by chance, he happens to get lucky, he works out a lot and has big arms, muscles and a lot of veins. Wants to know if by chance the first vaccine was shot into a vein could it be toxic. It really hit him and he felt it go up in the arm and into his head almost instantaneously. It came on him like someone hit him with a gun. It really shocked him and he is in medicine himself and in the last 35 years he has never had a vaccine/shot like that. Within 30-40 minutes he started sweating. He did get the second shot. Wonders if it got into his blood stream and wonders if it could hurt him. Has asked a lot of people who are in medicine and used the COVID hotline where he got the vaccine. He was in a car accident and has not been himself, someone hit him. Starting to get clumsy and has habitual night sweats and is saturated when he gets up from sleeping, has horrible nightmares. The patient had second dose on 11Jan2021. Stated no problems with past vaccines. Has been doing good keeping his distance and wearing his mask. At the top of his head is very sensitive, the crown area and the medication flew up his arm and went right to his head and it seems like it stayed there. The outcome of the events were reported as not recovered.  Follow-up attempts completed. No further information expected.