her salivary glands have overworked; she felt nauseated like she was about to vomit; that wasn't like a headache but she "felt funny and was not normal"; She was swallowing saliva all the time; This is a spontaneous report from a contactable consumer or other non hcp (patient). An 81-year-old female patient received first dose of bnt162b2 (PFIZER-BIONTECH COVID-19 VACCINE, Solution for injection, Batch/Lot Number: EL9662) via an unspecified route of administration on 29Jan2021 (at the age of 81-year-old) at dose 1, single for covid-19 immunisation. Medical history was reported as none. Concomitant medications were not reported. Reporter had an AE with the first dose of the Pfizer BioNTech COVID-19 vaccine. On 29Jan2021 the patient experienced all of a sudden, her salivary glands have overworked, and she felt nauseated like she was about to vomit. She also said that she felt something in her head that wasn't like a headache, but she felt funny and was not normal. Her next shot is on 19Feb2021. She has heard that the adverse events associated with the second shot is stronger than those of the first dose. She wanted to know if this was true. Additional Context: Reporter is calling about got the Pfizer COVID 19 vaccine. She got the first shot that was on 29Jan2021 and she had symptoms after that, and she just decided she would call and report it. She got the shot and didn't feel anything, her arm didn't hurt, she waited 15 minutes nothing, she was driving home and her left facial gland on the left side of her face started working overtime. She was swallowing saliva all the time then that stopped. She went home she was sitting down reading and she got nauseated and she thought she would have to run to the bathroom and throw up but that slowly passed and then later on in the day her head started feeling, it didn't hurt but it wasn't right, it was a strange, weird, funny feeling. She doesn't know how else to explain it and that was it. That was all that happened and that was first day. Reporter details: She was a medical lab tech many years ago. Primary Care: The primary care is new to her and it is an unusual name. She does not have any contact information with her to provide. Patient details: She is shrinking all the time. Event details: She says it didn't last long at all. It was strange she just keep swallowing saliva in her mouth. It was a funny feeling in her head. She says it was all very sequential how she explained it her salivary gland and then the nausea, one by one, it was strange. But everything was recovered completely the same day. Product details: She says she hates being old she just had the vaccine card now she has to find it. She sees Pfizer and then under it, it says lot number EL9662. She says the last digit could be a 2 or a 7. She does not see expiration or NDC number just the date and the HCP clinic site. She understands and she hears that the second dose is stronger so she wonders would she expect having more symptoms after the second dose. She says that is alright. She just thought since she had this experience with the first, she would ask if that would happen with the second. Outcome of the events was resolved on 29Jan2021.  Follow-up (12May2021): Follow-up attempts completed. No further information expected.