confused, disoriented; disoriented; Fall; Fever; metallic taste in mouth; sore on tongue; forgot how to walk; sore across collarbone; This is a spontaneous report from a contactable Consumer patient reported that. A 88-years-old female patient received BNT162B2 (PFIZER-BIONTECH COVID-19 VACCINE, Solution for injection, Solution for injection), via an unspecified route of administration, administered in Arm Left on 20Jan2021 (Batch/Lot number was not reported) as DOSE NUMBER UNKNOWN SINGLE for covid-19 immunization. The patient past Medical history included Parkinson's disease from an unknown date and unknown if ongoing, depression from an unknown date and unknown if ongoing, glaucoma from an unknown date and unknown if ongoing and osteoporosis from an unknown date and unknown if ongoing. Concomitant medication(s) included carbidopa, levodopa (CARBIDOPA LEVODOPA, 1.5 pills by mouth morning and night and one pill at lunch, mg unknown) taken for Parkinson's disease, Duloxetine Hydrochloride, one pill by mouth at night, mg unknown taken for depression from Nov2020 to an unspecified stop date, dorzolamide (DORZOL [DORZOLAMIDE, a drop in each eye in the morning and drop a night) taken for glaucoma, latanoprost (LATANOPROST, one drop in both eyes at night) taken for eye disorder and Denosumab (PROLIA, Dosage text twice a year) taken for osteoporosis. The patient did not receive any other vaccine within 4 weeks prior to covid-19 vaccination. The patient reported that a couple days after she got the vaccine, she reported she was sore across her collarbone on 22Jan2021 they expected that, they didn't consider it an adverse effect, maybe 4 days in, she was really confused, disoriented and began running a fever and she had a fall, at some point, she forgot how to walk, she had a metallic taste in her mouth that wouldn't go away, a sore on her tongue, the fever escalated, at night it escalated, in the day it went down, next time up, but every day it got less and less, for over a week her mother couldn't walk on an unspecified date, caller had to go with her to the bathroom, she couldn't respond, it was like night and day.  Sore across collarbone: date of vaccine was 20Jan2021, and it was sore a couple days after. It is not ongoing, just initially, her mother has recovered completely. Then about 5 days later in the night, her mother was disoriented and fell, caller noticed her mother acting strangely like 4 days after she had it, but it was over night, her acting confused. Her mother has been confused off and on, it was bad but is getting somewhat better, caller thought her mother had had a stroke when she took her in. Fall: her mother ended up with a spinal compression fracture from that, she doesn't complain of pain, but had a follow up xray, which was identical to the first one, and had a CT scan to make sure no stroke or something else going on, they still saw nothing abnormal there. This was on 29Jan2021. Fever: about 5 days in it started, but on the 7th night, her mother felt really hot to touch, she went to medical care after the fall, they said her mother ran a little fever, which was to be expected, but it was not high, next night it was high and came down, they gave something, and it came down and went up, now her mother has had no fever in several days. Metallic taste: That was from the beginning, caller asked her this week, and her mother said it went away, but at least started a week in, it was strong, she wouldn't eat or drink. Now has gradually gone away. Sore on tongue: Caller never remembered her mother having a sore, it was really bad, they gave mouth rinse, and it has gone away, it was a week to 10 days of really bad, unknown if it is related to the metallic taste, it's possible, when she fell, she could have bitten her tongue doesn't know. It started when she was disoriented, then the fall, caller says it is all a blur to be honest, she was staying round the clock with her, and didn't write that down, but it was early on after the vaccine. Caller believes, in the spring, before there was testing, it was possible her mother did have COVID, her only symptom was a bad pinkeye, she never had pinkeye before, was around no one, except the caller, and caller said it went through her family, so caller believes her mother had it, and caller heard people who have had it, there's no proof, but they have a harder time with the vaccine. The patient underwent lab tests and procedures which included, Had an X-ray on 26Jan2021 at Medical Care, showing the fracture and another X-ray on 29Jan2021 at brain and spine center in (city), which showed same thing, they wanted to do one standing, her mother had one laying down. They went to doctor's office on 26Jan2021, was referred to brain and spine, on 29Jan2021, then her mother had gone to hospital for CT scan that day, on 29Jan2021. Then she had a follow up with medical care on 04Feb2021, and as of yesterday, home health physical therapy is coming to house twice a week. The event outcome was Recovering for confused, disoriented and Unknown for rest of the events.  Information on the lot/batch number is requested.