Possible at risk reaction to Covid 19 vaccine ingredients; This is a spontaneous report received from contactable reporter(s) (Consumer or other non HCP) from medical information team. The reporter is the patient.  A 66 year-old female patient received bnt162b2 (BNT162B2) (Batch/Lot number: unknown) as dose number unknown, single for covid-19 immunisation. Relevant medical history included: "Guillain Barre" (unspecified if ongoing), notes: Verbatim: Guillain Barre; "swine flu" (unspecified if ongoing), notes: Patient had a history of GBS due to swine flu when she was 21 years old; "lost her walking" (unspecified if ongoing), notes: When she had Guillain Barre she lost her walking when she first got it; "COVID", start date: Jan2021 (unspecified if ongoing), notes: Jan2021 she had tested positive for COVID; "asthma" (unspecified if ongoing). The patient's concomitant medications were not reported. Vaccination history included: Flu vaccine, reaction(s): "viral conjunctivitis", "extreme fatigue", "very tired"; Flu vaccine (She got sick from a flu shot in 1986 or 87 she doesn't know what type of vaccine they were using then, she was sick for a long time), reaction(s): "sick for a long". The following information was reported: ALLERGIC REACTION TO EXCIPIENT (non-serious), outcome "unknown", described as "Possible at risk reaction to Covid 19 vaccine ingredients".  Additional information: Reaction/event as reported by primary source was possible at risk reaction to Covid 19 vaccine ingredients. Batch/lot number was not provided. Covid 19 vaccine a Pfizer product was unspecified. Covid 19 vaccine manufacturer was unspecified. NDC number of Covid 19 vaccine was not provided. Expiry Date of Covid 19 vaccine was not supplied. Other Products was not provided. Investigation Assessment was not provided. She had the Covid 19 virus in Jan2021 and had an antibody infusion. She's not eligible for the Covid 19 vaccine until Apr2021. She had also called Moderna. She had Guillain Barre when she was in her 20s. She's 67 right now (later clarified as 66), and her regular doctor that she sees doesn't have an answer if she can get the Covid 19 vaccine. Her pulmonary doctor, she sees him because she had asthma, told her to get the Covid 19 shot. She did a flu shot about 10 years ago and she was sick for 9 months after that shot. It has egg in it, in the ingredients.  She went to the website and doesn't know all of the names with the ingredients; wants to know what the ingredients are. She reports that her husband has not been feeling good for 2-3 days after his Moderna booster. Her son's pediatrician asked her if she wanted it while she was there getting her son immunized. Clarified that she was getting her son, who was an infant, his immunizations and the doctor asked her if she wanted to get a flu shot, just offhand, while she was there. The flu shot wasn't pushed in those days like it is now. It was around Nov1986. NDC/Lot/Expiry information not known by caller.  Now she never gets the flu shot. She got Guillain Barre from the swine flu virus. Then 10 years later, that's when she got the flu shot that made her sick for 9 months. She had no immediate reaction. It was viral conjunctivitis and a lot of things. She was told the flu settled in her spinal cord, but the vaccine was a different entity.  Follow-up (12Mar2021): The initial case was missing the following minimum criteria: No adverse Event. Upon receipt of follow-up information on (12Mar2021), this case now contains all required information to be considered valid and other information was added in narrative.  No follow-up attempts are possible; information about lot/batch number cannot be obtained. No further information is expected.