The flushing appeared once again. On my face and ears, and I didn't detect anything else; Severe cramping. My legs, calves, and feet. Also, hands and arms. It's random; This is a spontaneous report received from a contactable reporter(s) (Consumer or other non HCP) from medical information team. The reporter is the patient.  A female patient received BNT162b2 (BNT162B2), as dose 4 (booster), single (Lot number: EL9264) for covid-19 immunisation. The patient's relevant medical history and concomitant medications were not reported. Vaccination history included: Bnt162b2 (Dose 1), administration date: 2021, for COVID-19 immunization, reaction(s): "I felt extremely dizzy", "On my ears, and my nose was hot and red. Also, on my chest and neck", "extremely awkward for 2 or 3 days", "On my ears, and my nose was hot and red. Also, on my chest and neck", "Flushing"; Bnt162b2 (Dose 2), for COVID-19 immunization, reaction(s): "Energized", "Flushing"; Bnt162b2 (Dose 3), for COVID-19 immunization; Flu vaccine (she also had these reactions when she received the flu vaccine), administration date: 2021, for Immunization, reaction(s): "she also had these reactions when she received the flu vaccine", "she also had these reactions when she received the flu vaccine", "she also had these reactions when she received the flu vaccine", "she also had these reactions when she received the flu vaccine", "she also had these reactions when she received the flu vaccine", "she also had these reactions when she received the flu vaccine"; Flu vaccine (she also had these reactions when she received the flu vaccine), for Immunization, reaction(s): "she also had these reactions when she received the flu vaccine". The following information was reported: MUSCLE SPASMS (non-serious) with onset 2022, outcome "not recovered", described as "Severe cramping. My legs, calves, and feet. Also, hands and arms. It's random"; FLUSHING (non-serious), outcome "not recovered", described as "The flushing appeared once again. On my face and ears, and I didn't detect anything else".  Additional information: Caller stated that she had some reactions to the COVID-19 vaccine LOT EL9264. She'd like to know if they might be related to the COVID-19 vaccine; if other people have experienced something similar; and some guidance regarding whether or not to continue receiving doses of the COVID-19 vaccine. Caller mentioned that she has reacted to the previous doses of the Pfizer-BioNTech COVID-19 vaccine. For the first dose, in 2021, she had some flushing. On her ears, and her nose was hot and red. Also, on her chest and neck. Later on, she felt extremely dizzy and extremely awkward for 2 or 3 days. For the second dose, she had the flushing again. No dizziness. She was curious, because she was kind of energized and there were no other symptoms other than the initial flushing. For the third dose she doesn't remember any particular symptom. Now, for the fourth dose, her last one, the flushing appeared once again. On her face and ears, and she didn't detect anything else. Within the next two weeks, after 20May2022 she had severe cramping. Her legs, calves, and feet. Also, hands and arms. It's random. It doesn't happen all the time, it's not continuous, but it's there every day. Caller stated that she also had these reactions when she received the flu vaccine. Caller would like to know if these symptoms might be related to the COVID-19 vaccine. Has gotten 4 in total. Had some reactions with some doses and wondering if there was anything she can do to continue with her vaccine series. First dose she had Flushing and dizziness. Second and third doses she didn't seem to have much of a reaction. Fourth dose there was something that kind of happened but she didn't think it was related to the vaccine but her doctor said it might be. Product clarified to COVID-19 Vaccine MRNA, Pfizer Inc from her vaccine card. In her vaccine card there is a number on there that says: EL9264. Caller does not know what that number is for, not indicated on her vaccine card. COVID-19 Vaccine MRNA cap color unknown by caller.