allergic; cough; fingers and hands turning blood red; Diarrhea; Throwing up; food poisoning; Highly dehydrated; hardly breathe; Difficulty swallowing; Tired; Ringing in ears; hallucinating; one leg it's swelling; Swelling in legs, feet, and ankles; Eye problems; 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 88 year-old female patient received bnt162b2 (BNT162B2), administered in arm left, administration date 06Apr2021 (Lot number: ER8733) at the age of 88 years as dose 2, single for covid-19 immunisation. Relevant medical history included: "allergy to Dust Mites" (unspecified if ongoing); "allergy to Cat Fur" (unspecified if ongoing); "food poisoning" (unspecified if ongoing). The patient's concomitant medications were not reported. Vaccination history included: Bnt162b2 (LOT: EN6206, Route: injected into left arm, first dose), administration date: 09Mar2021, when the patient was 88 years old, for COVID-19 immunization. The following information was reported: FOOD POISONING (hospitalization) with onset 24Apr2021, outcome "unknown", described as "food poisoning"; DEHYDRATION (hospitalization) with onset 24Apr2021, outcome "unknown", described as "Highly dehydrated"; HYPERSENSITIVITY (hospitalization) with onset 25Apr2021, outcome "unknown", described as "allergic"; COUGH (hospitalization) with onset 25Apr2021, outcome "unknown", described as "cough"; ERYTHEMA (hospitalization) with onset 25Apr2021, outcome "recovered", described as "fingers and hands turning blood red"; HALLUCINATION (medically significant), outcome "unknown", described as "hallucinating"; DYSPNOEA (hospitalization) with onset Apr2021, outcome "unknown", described as "hardly breathe"; DIARRHOEA (hospitalization) with onset 24Apr2021, outcome "recovered", described as "Diarrhea"; VOMITING (hospitalization) with onset 24Apr2021, outcome "recovered" (24Oct2021), described as "Throwing up"; PERIPHERAL SWELLING (non-serious) with onset Sep2021, outcome "unknown", described as "one leg it's swelling"; JOINT SWELLING (non-serious) with onset Sep2021, outcome "unknown", described as "Swelling in legs, feet, and ankles"; TINNITUS (non-serious), outcome "recovering", described as "Ringing in ears"; EYE DISORDER (non-serious) with onset Sep2021, outcome "recovered" (Nov2021), described as "Eye problems"; DYSPHAGIA (non-serious), outcome "unknown", described as "Difficulty swallowing"; FATIGUE (non-serious), outcome "unknown", described as "Tired". The patient was hospitalized for food poisoning, dehydration, hypersensitivity, cough, erythema, dyspnoea, diarrhoea, vomiting (start date: 24Apr2021, discharge date: 27Apr2021, hospitalization duration: 3 day(s)). The events "food poisoning", "highly dehydrated", "allergic", "cough", "fingers and hands turning blood red", "hallucinating", "hardly breathe", "diarrhea", "throwing up" and "ringing in ears" were evaluated at the emergency room visit. The event "eye problems" was evaluated at the physician office visit. The patient underwent the following laboratory tests and procedures: pulmonary function test: nothing wrong with her lungs; urine analysis: unknown results. Therapeutic measures were taken as a result of food poisoning, dehydration, hypersensitivity, cough, erythema, hallucination, dyspnoea. Clinical course: On 24Apr2021 or 25Apr2021 the patient had food poisoning and have had it before in the ER highly dehydrated. That Saturday night they took the patient to the hospital and they wanted to keep her overnight, and while she in the holding room she apparently went into an allergic whatever and they gave her Benadryl. The patient had a cough, and her hands from fingertips were blood red both hands turning red up to the wrist. Next day about 4pm the patient had another attack and came in and did the same thing, but this one was worse she could hardly breathe and was put on breathing machines. When she left the hospital they just said allergy period, and since then been to allergy doctors and pulmonary doctors. Nobody specified what she was allergic to. The patient stated the booster shot is out and she firmly believed those two shots she got attacked her system and She became allergic. Every doctor she'd been to says the length of time from shots to hospital, no it wasn't that. She believed it attacked her system and had had weird things going on for 3 or 4 days; her ears rang and had eye problems for a few days and coughing. She also had a problem with vascular on one leg it's swelling and is usually very healthy. Caller states doctors said it's not the vaccine. Per her doctor, her experience after the two vaccines she received was not an allergic reaction. The patient was admitted to the MICU from 24Apr2021-27Apr2021. She had diarrhea for hours on morning 24Apr2021. Only had one episode when she got to the hospital. She had not been sick. It has subsided. States she has only been sick twice with this episode. She only had throwing up once. Think she had two slightly at home. Did not throw up at the hospital. Year before had food poisoning very bad. She has episodes of highly dehydrated. Has had this before. It cleared up in between all. Dehydration is when everything else started. Allergic reaction maybe started when she was moved to the MICU from the ER on the 25Apr2021 (as reported) by 01:00-02:00. Clarifies her allergic experience as the cough and her fingers and hands turning blood red. First cough episode wasn't bad. She was asked to give a urine sample in the hospital. She used the wipes in the little packet to clean herself with. Wasn't about maybe 3-4 minutes when the reaction started. Was told she could have been allergic to that little wipe or towelette. But the patient doesn't think she's allergic to that. Blood red fingertips and hands: Looked like blood. It was turning red and it came up on one hand as far as her wrists. Came to the other hand just above the tops of her fingers. Was given Benadryl in her IV and an Epi Pen. After these medications, the symptoms began to disappear. Next day, doesn't know what time, but in the afternoon she had another attack. It was worse. Second allergic reaction happened on 25Apr2021. Same attack. Was coughing and could hardly breathe. It was attacking her lungs. There is nothing wrong with her lungs. Her pulmonary doctor said she's fine. She is on allergy medication, not Benadryl to prevent her from having an attack again. Has had all these kinds of tests done and they can't find out what it is. Ringing in ears started when she had all these crazy things happening to her system. Right now, they are better today than they were. It was a little humming sound and it lasted maybe 2-3 days. Had Eye problems in Sep2021. Saw her eye doctor in Nov2021. Her eyes are back to where they usually are. Had a cough, and breathing problems. That happened and stayed with her even when she left the hospital. If she walked too much, had difficulty breathing. Had the inhalers. Then difficulty swallowing. Has a problem with swallowing food down. Whatever it is that you swallow with, hers has shrunk. She can have it expanded some but doctor doesn't want to put her in hospital and do it unless its' absolutely necessary. If she eats something too big, and tries to swallow, it sticks and she chokes on it. From the time of Jul2021-Aug2021, had all these crazy things happen to her, like the last time the vasculature on her leg. Appointment for her leg is 22Mar2022. Left leg, foot, and ankle swell up. Right one does it periodically. Right now is wearing compression stockings until she can get X-rays to find out what's wrong. Began after her COVID-19 Vaccines since leaving the hospital. The patient had flu shot two weeks ago.