dry mouth with a constant thirst feeling; a weird feeling, she had to concentrate on her words, on what she was saying and was tongue tied; could not open her eyes; flu like symptoms/felt like when you have a cold/flu; a little hazy/fogginess/haziness//COVID fog; she was very very cold; bad chills; feverish feeling/a fever of 102°F; severe headache/happened soon after she woke up; right arm started hurting; This is a spontaneous report from a contactable consumer (patient). A 64-years-old female patient received BNT162B2 (PFIZER-BIONTECH COVID-19 VACCINE, solution for injection, Lot number and expiration was not reported), shot of second dose at single dose via an unspecified route of administration, administered in arm left on 27Apr2021 (Tuesday in the morning) for covid-19 immunisation (at age of 64 years). Medical history: She had arthritis in her neck (had this condition for years; Investigation Assessment: Yes) and she usually have headaches every day (tolerate a headache every single day with arthritis in her neck). The pollen count was up, so she was not sure if it is the arthritis in her neck, sometimes she got pain, a headache. Sometimes, she had trouble getting words out. Relevant family medical history was none. The patient denied being sick at the time of vaccination. No prior vaccinations within 4 weeks, no adverse event following prior vaccinations. No additional Vaccines administered on same date of the Pfizer suspect. The media was telling us to receive the vaccination so received. Concomitant medications included fenofibrate taken for cholesterol high (been taking this for a while); ezetimibe taken for cholesterol high (ongoing, said it was equivalent to Zitia and had been taking this for a year); fish oil (ongoing, recommended by the doctor and it was good for you); ascorbic acid, betacarotene, biotin, calcium, chlorine, chromium, copper, cyanocobalamin, dl-alpha tocopheryl acetate, folic acid, iodine, magnesium, manganese, molybdenum, nickel, nicotinamide, pantothenic acid, phosphorus, phytomenadione, potassium, pyridoxine hydrochloride, retinol, riboflavin, selenium, silicon, thiamine, vanadium, vitamin d nos, xantofyl, zinc (CENTRUM SILVER +50) (Ongoing; multivitamin and she has been taking this for a while as supplement.  Previously, patient received PFIZER-BIONTECH COVID-19 VACCINE as first dose at single dose via an unspecified route of administration, administered in arm left on unspecified date (Batch/Lot number and expiration was not reported) for covid-19 immunisation in the morning (The patient not since 3weeks ago since she received the first shot. She did not have any reaction to the first shot, nothing) (Military Facility: No). On 27Apr2021, the day of the shot she had no arm pain out of the ordinary. She said even the nurse said while she got the second dose that if she had no reaction then she should be good really. In 2021, the patient was not sure if it was coincidental or not but when she had the shot on her left arm, but her right arm started hurting then the fogginess was more visible. It was like someone gave her the shot, her arm hurt, arm did not feel 100%. Then the patient had been having some side effects after receiving the second dose of the Pfizer COVID vaccine. On 28Apr2021, the next day, the patient experienced slight headaches in morning afterwards. She had a bit of a headache the next couple days. She had arthritis in her neck and she usually have headaches every day, so she didn't think much of it. Friday (30Apr2021) she had a pretty good headache and bad chills, bad day. Friday (30Apr2021) at 18:00 she was very-very cold, she came home, it felt like when you have a cold/flu and had started fogginess and feverish feeling. Friday night she experienced chills, flu like symptoms and a fever of 102 degree F (fever at night 2:00am so it was Saturday 01May2021). By the time she woke up the next morning with a severe headache and she could not open her eyes (01May2021). The headache lasted two days and was more tolerable but happened soon after she woke up. He says she had a headache for a few more days and around Friday (30Apr2021), Saturday (01may2021) she had chills and she started getting a little hazy, not like a stroke, she couldn't find the words (01May2021). On Saturday (01May2021) she had a weird feeling, she had to concentrate on her words, on what she was saying and was tongue tied that started in the morning and it is slightly improved. She chuckled and said it was old age. Her daughter who was a nurse told her that this was called COVID fog. She called her doctor and he confirmed this was normal and there was something called a COVID fog that he had heard about and asked to give it a few days to go away and if not to call him back. She also has dry mouth which started Sunday (02May2021) afternoon and it is like she can't get enough water. Sunday (02May2021) night it stopped, her fogginess and not 100% and was slightly better. Her chills were cold like a cold; she just wanted to get into bed and curl up. She confirmed haziness was the same as fogginess. The patient was used to be 5feet 4inch, but recently she was 5feet 3 and a half inches. Right arm hurting started a few days ago and Monday she had it, yesterday (05Feb2021) she didn't have it (she said outcome as unknown). Arm felt much better today (06May2021), her arm doesn't hurt now. The wrong words came out and she had that still a little bit today (06May2021). No emergency Room and physician office visit done. The patient had to get her purse and find her pocketbook; she had to find it in her car and as she walked into the room and her husband handed her the phone. It was getting annoying, like she was getting dementia, she was concerned. It was something she had to live with. The patient then gave the phone to her husband who stated that since his wife had fever, chills, using the wrong words, having to focus a little more and dry mouth with a constant thirst feeling he would like to know if these side effects have been reported before and he would also like to know what his wife should do if her symptoms persist. Additional adverse reactions, some of which may be serious, and may become apparent with more widespread use of the Pfizer-BioNTech COVID-19 Vaccine. The patient underwent lab tests and procedures which included body temperature increased: 102 Fahrenheit. The outcome for weird feeling, headache was recovering; for chills was recovered on 02may2021, for flu like symptoms was unknown, for fever was recovered on 02may2021; dry mouth was not recovered, hazy/fogginess was not recovered, her arm hurt was unknown. Information on the lot/batch number has been requested.