Passed out; bad memory; Pneumonia; almost died; fall and hit the floor 3 times; This is spontaneous report from contactable consumer (patient) reported for herself. A 62-years-old female patient received bnt162b2 (PFIZER-BIONTECH COVID-19 mRNA VACCINE, Solution for injection, Lot number was not reported), via an unspecified route of administration, administered in Arm Right on 20Apr2021 as dose 1, single for COVID-19 immunization (Age at vaccination 61 years). The patient medical history was not reported. Concomitant medication(s) included varenicline tartrate (CHANTIX) taken for an unspecified indication. Prior to the vaccination, the patient was not diagnosed with COVID-19 since the vaccination. The patient did not receive any other vaccine within 4 weeks prior to covid-19 vaccination. It was reported that the agent gave the patient information on how to get Chantix through the Patient assistance program. During the call the patient states she would really like to use Chantix. She is on nebulizer and oxygen and has been smoking for 40 something years. She also has a bad memory. The caller confirms the details provided by the transferring agent but states she has never consumed the product Chantix. She has 2 or 3 friends that have tried Chantix and it worked for them. She didn't know she could get help with Chantix until one of her son's told her. Her son is 27 years old and it a paraplegic. One of her son's aids told her she could get help getting Chantix. The caller states her bad memory started after she got the first dose of the Covid 19 vaccine. It put her in the hospital for 12 days the day after she got the Covid 19 vaccine on an unspecified date. When probing for the caller's healthcare provider's information the caller states her doctor told her that her hospitalization didn't have anything to do with the Covid 19 vaccine. She received her first Covid 19 vaccine on 20Apr2021. When probing for NDC/Lot/Expiry she states her daughter threw the card away. She doesn't even know if the Covid 19 vaccine was a Pfizer product. She had the dose at withheld. She reports she was in the hospital with pneumonia, but she's been smoking for 40 something years and she's had pneumonia at least 15 to 20 times in her life. She has never had to go to the hospital before with pneumonia. She has never passed out before and she didn't remember her family for 9 days after getting the Covid 19 vaccine. She woke up on the 9th day in the hospital and remembered who her family was. She states on 21Apr2021 her son's friend happened to be at her home and he had to pick her up off the floor 3 times and she doesn't remember any of it. Her son heard her fall and hit the floor 3 times. She doesn't remember anything until the 9th day. She was withheld for 12 days.  She states that her sister asked to get in her wallet to look for the white card while she was in the hospital and the card says Covid 19 on it. The caller didn't tell anyone she was getting the Covid 19 vaccine. When probing for testing done at the hospital the caller states she doesn't remember. Her son was so upset because he thought the caller was going to stay that way. She almost died, that's what she was told, that she almost died when she was in the hospital on an unspecified date. The caller asks when Chantix will be available. She admits she lied in the beginning of the call and she has tried Chantix before. She states a friend gave her a week's worth of Chantix about 10 years ago. The amount of Chantix wasn't enough to get her past the nonsmoking stage. She does not have any product information like the NDC/Lot/Expiry because it was 10 years ago. She states the Chantix is a good product and she's seen it work on her friends. She can't even smoke in her friend's cars anymore. She needs to stop smoking or it's going to kill her. Outcome of all events was Unknown.  The lot number for the vaccine, [BNT162B2], was not provided and will be requested during follow up.