She has lost 149 pounds and is still going.; she cannot chew on anything, she cannot bite down on anything.; She couldn't life up her arm, which she knew was normal; Got gingivitis and ulcer in her mouth and a growth in the mouth; Got gingivitis and ulcer in her mouth and a growth in the mouth; Caller states that the roof of her mouth and along the gum line is ulcerated and she drolls a lot.; She has one little blister.; This is a spontaneous report received from contactable reporter(s) (Other HCP) from medical information team. The reporter is the patient.  A 78 year-old female patient received bnt162b2 (BNT162B2), administered in arm left, administration date 12Apr2021 10:30 (Lot number: EP7533) at the age of 78 years as dose 2, single for covid-19 immunisation. Relevant medical history included: "Aortic stenosis" (ongoing), notes: States she has a heart condition, aortic stenosis, she does take medication for her heart; "Problem with blood pressure" (ongoing), notes: she has a problem with her blood pressure, diagnosed in her 30s. The patient's concomitant medications were not reported. Vaccination history included: Bnt162b2 (LOT: EP6955,Expiry Date: Unknown, left arm,time: in the morning, about 10:30 AM), administration date: 21Mar2021, when the patient was 78 years old, for Covid-19 immunization; Flu shot (Caller states she gets the flu shot every year.). The following information was reported: LIMB DISCOMFORT (non-serious) with onset Apr2021, outcome "unknown", described as "She couldn't life up her arm, which she knew was normal"; MOUTH ULCERATION (non-serious) with onset Apr2021, outcome "not recovered", GINGIVITIS (non-serious) with onset Apr2021, outcome "unknown" and all described as "Got gingivitis and ulcer in her mouth and a growth in the mouth"; PALATAL SWELLING (non-serious) with onset Apr2021, outcome "unknown", described as "Caller states that the roof of her mouth and along the gum line is ulcerated and she drolls a lot."; BLISTER (non-serious) with onset Apr2021, outcome "unknown", described as "She has one little blister."; WEIGHT DECREASED (non-serious), outcome "unknown", described as "She has lost 149 pounds and is still going."; MASTICATION DISORDER (non-serious) with onset Apr2021, outcome "unknown", described as "she cannot chew on anything, she cannot bite down on anything.". The events "got gingivitis and ulcer in her mouth and a growth in the mouth", "got gingivitis and ulcer in her mouth and a growth in the mouth", "she has one little blister." and "she cannot chew on anything, she cannot bite down on anything." were evaluated at the physician office visit. Therapeutic measures were taken as a result of mouth ulceration, gingivitis, mastication disorder.  Additional information: she got the Pfizer, the first injection for the virus, she never had a problem with it, no problem whatsoever. she got the second one and that seemed to have a little bit of a problem. She states all the other symptoms she expected. she has symptoms, and she doesn't know how to handle them. Caller states she has ulcers in her mouth, almost like gingivitis, and she's a (Privacy) also. Caller states she has them along the gum line, she has one little blister. she was in (Privacy) for 25 years, she's retired now. she is relatively new, she's only been in (Privacy) since 28Jan2021. she doesn't have her primary care doctor's address, she just moved to (city) and she's in a wheelchair, so it makes it harder for her to get around. she was a (Privacy), her sister takes her to her all the time, but she can get it.  No follow-up attempts are possible. No further information is expected.