muscle weekness; I had a bad fall.; There's not a muscle in my body that works. My swallowing; I can't use my hands, my fingers and legs don't work; I have trouble going to the bathroom; messed up my back. I am getting worse; messed up my back. I am getting worse; vitamin D3 was high; has trouble talking and gets so short of breath; she has to use a cane to walk; bruised her tailbone; she has to force urine out.; This is a spontaneous report received from contactable reporter(s) (Consumer or other non HCP) from medical information team for a Pfizer sponsored program (005570). The reporter is the patient.  A 83 year-old female patient received bnt162b2 (COMIRNATY), administered in arm left, administration date 07Jun2021 (Lot number: EW0178) at the age of 82 years as dose 2, single for covid-19 immunisation. Relevant medical history included: "Atrial fibrillation" (unspecified if ongoing); "Cardia" (unspecified if ongoing); "sinus rhythm" (unspecified if ongoing). Concomitant medication(s) included: ZINC; FOLIC ACID; CRANBERRY; FISH OIL. Vaccination history included: Bnt162b2 (DOSE 1, Lot number : EW0179, left arm.), administration date: 17May2021, when the patient was 82 years old, for COVID-19 immunization; Prevnar 20, for PNEUMONIA. The following information was reported: MUSCULAR WEAKNESS (non-serious), outcome "unknown", described as "muscle weekness"; FALL (non-serious), outcome "unknown", described as "I had a bad fall."; DYSPHAGIA (non-serious), outcome "unknown", described as "There's not a muscle in my body that works. My swallowing"; HYPOKINESIA (non-serious), outcome "unknown", described as "I can't use my hands, my fingers and legs don't work"; LOSS OF PERSONAL INDEPENDENCE IN DAILY ACTIVITIES (non-serious), outcome "unknown", described as "I have trouble going to the bathroom"; BACK DISORDER (non-serious), CONDITION AGGRAVATED (non-serious), outcome "unknown" and all described as "messed up my back. I am getting worse"; VITAMIN D ABNORMAL (non-serious), outcome "unknown", described as "vitamin D3 was high"; DYSPNOEA (non-serious), outcome "unknown", described as "has trouble talking and gets so short of breath"; WALKING AID USER (non-serious), outcome "unknown", described as "she has to use a cane to walk"; BONE CONTUSION (non-serious), outcome "unknown", described as "bruised her tailbone"; DYSURIA (non-serious), outcome "unknown", described as "she has to force urine out.". The events "muscle weekness", "i had a bad fall.", "there's not a muscle in my body that works. my swallowing", "i can't use my hands, my fingers and legs don't work", "i have trouble going to the bathroom", "messed up my back. i am getting worse", "messed up my back. i am getting worse", "vitamin d3 was high", "has trouble talking and gets so short of breath", "she has to use a cane to walk", "bruised her tailbone" and "she has to force urine out." were evaluated at the physician office visit. Relevant laboratory tests and procedures are available in the appropriate section.  Additional information: A few weeks after receiving the second Pfizer Covid shot patient started having muscle weekness and as a result I had a bad fall. she didn't break anything but messed up my back and getting worse. Weakness is so bad that she fell again. her concern was that before the shots she was able to walk dog and had no problem. Now I cannot leave my house without aide. I have seen my cardiologists and Primary care physician and they cannot come up with an answer. The patient got the second dose of the vaccine shortly after, she was fine before, she slowly started to feel weakness particularly in her legs. She went to walk her dog one day and her legs gave out and she fell backwards and bruised her tailbone. The caller went to her PCP and they ran some blood tests and said her vitamin D3 was high so she stopped taking her D3 but she is still getting weaker by the day. she does not leave the house and there's not a muscle in her body that works- her swallowing she can't use her hands, and her fingers and legs don't work, and has trouble going to the bathroom. Her symptoms came on slowly. She started noticing it maybe in Jul2021 and she thought she could exercise and get the strength back in her legs but that didn't work, she couldn't do much exercise. By Oct when the she fell, she had gotten so weak that it was extremely noticeable. her legs were so weak she was having trouble going up and down the stairs. she was on the ground when she fell and landed in the yard, she had to have someone come pick her up. The caller's doctor ran every test to see what was wrong and by then the caller had lost the strength in her arms and hands. The caller went to the chiropractor and this has not helped and she now has trouble talking and gets so short of breath. The caller has problems swallowing, particularly water. When the caller tries to go to the bathroom it doesn't work well, she has to force urine out. The caller wants to get tested for ALS muscularly dystrophy because now she has to use a cane to walk. Time the Vaccination given was in the morning before noon. Vaccine was not administered at a Facility. No Additional Vaccines Administered on Same Date of the Pfizer Suspect. AE(s) require a visit to Physician Office in October. No vaccination within 4 weeks prior Vaccinations. No AE(s) following prior vaccinations. The patient has had a rash but doesn't know if it was from a vaccine, mostly it happens from antibiotics. The last vaccine the patient can remember getting was the Prevnar 20 for pneumonia. Reporter seriousness for slowly started to feel weakness particularly in her legs, her legs gave out and she fell backwards and bruised her tailbone, vitamin D3 was high, does not leave the house and there's not a muscle in her body that work, has trouble talking and gets so short of breath, has problems swallowing, particularly water, tries to go to the bathroom it doesn't work well, she has to force urine out was Unspecified.  No follow-up attempts are possible. No further information is expected.