This is a spontaneous report received from contactable reporter(s) (Consumer or other non HCP) from medical information team. A 65 year-old female patient received bnt162b2 (PFIZER-BIONTECH COVID-19 VACCINE), administered in arm (Batch/Lot number: unknown) as dose 3 (booster), single for Covid-19 immunisation. The patient's relevant medical history and concomitant medications were not reported. Vaccination history included: Bnt162b2 (Dose 1), administration date: 01Sep2021, when the patient was 65 years old, for Covid-19 immunization, reaction(s): "I think I am dying", "brain injury", "Osteoarthritis", "inflammation", "nerve damage", "arthropathy in her back", "fibromyalgia", "bilateral sciatica", "I'm tired", "sore", "chills", "I could hardly get through the walk", "There is a red bump on her arm that itches", "There is a red bump on her arm that itches", "sweating bullets", "She is just very sensitive and very strange", "nausea", "Thought she was dying", "Swollen glands", "Pain up spine", "Legs tired, hurt, and are achy", "having a red mark on her arm at the vaccination site", "itch", "sting", "panic disorder", "Her fibromyalgia, arthritis, and sciatica and everything would be inflamed and she would feel worse and it did", "allergic to it", "fall", "she "smacked" her affected arm bruising it and her elbow", "she "smacked" her affected arm bruising it and her elbow", "she "smacked" her affected arm bruising it and her elbow", "sore arm", "stress her a lot". The following information was reported: BRAIN INJURY (medically significant), outcome "unknown", described as "Brain injuries"; STRESS (non-serious), outcome "unknown", described as "stress her a lot"; PAIN IN EXTREMITY (non-serious), outcome "unknown", described as "sore arm"; FEELING ABNORMAL (non-serious), outcome "unknown", described as "getting really historical and paranoid with the letter"; PARANOIA (non-serious), outcome "unknown", described as "paranoid". The clinical course was reported as follows: the reporter was calling on behalf of his roommate (patient), they received a letter that it was from drug safety unit which said, "Thank you for contacting us regarding BNT162B2 bad time with second shot sore arm". The patient wanted to know if she got bad batches of the booster dose which she just had last Sunday. She also wanted to know if she could die from a bad batch of the Pfizer COVID-19 vaccine. The patient was getting historical and paranoid with the letter and they wanted more explanation on why she was digging given that letter, it was her survey and she wanted to know if why she was given that letter. Reporter stated she received from drug safety unit and said that his/her friend had a bad time with the second shot. Reporter thought it was someone that reported it and it was not his/her friend at all. Anyways, his/her friend said is there any chance, the Pfizer Covid shot she got was cheated or raw or bad because it is the suspect product, "DN2D1D" said that on the letter, suspect product and reporter didn't know if some person was trying to scare Pfizer by calling with regards to his/her friend." The reporter also saying "My neighbor is having problems with the Pfizer shot and they would stress up my roommate who has got brain injuries and stress her a lot. So, she wants me to call and say, "Is it safe to get second Pfizer Covid shot?" They got a survey letter saying, "someone called and something is wrong with the shot." When clarified the side effects, reporter stated, "She has got many health issues. Personally, it creates sore arm, it is bad. I cannot tell it is a brain injury or it is the shot." The lot number for bnt162b2 was not provided and will be requested during follow up.