walking funny and throwing back out/problems walking; burning; back pain; inflammatory reaction; This is a spontaneous report received from a contactable reporter(s) (Consumer or other non HCP) from medical information team. The reporter is the patient.  A 65 year-old female patient received bnt162b2 (BNT162B2), administered in arm left, administration date 04Mar2021 (Lot number: EN6203) at the age of 65 years as dose 1, single and administered in arm left, administration date 25Mar2021 (Lot number: EP7534) as dose 2, single for covid-19 immunisation. The patient's relevant medical history was not reported. There were no concomitant medications. The following information was reported: GAIT DISTURBANCE (non-serious), outcome "not recovered", described as "walking funny and throwing back out/problems walking"; BURNING SENSATION (non-serious), outcome "not recovered", described as "burning"; BACK PAIN (non-serious), outcome "not recovered", described as "back pain"; INFLAMMATION (non-serious), outcome "not recovered", described as "inflammatory reaction". Relevant laboratory tests and procedures are available in the appropriate section. Therapeutic measures were taken as a result of gait disturbance, burning sensation, back pain, inflammation. No follow-up attempts are possible. No further information is expected.  Additional Information: Follow-up (02Dec2021): The initial case was missing the following minimum criteria: no adverse effect. Upon receipt of follow-up information on (02Dec2021), this case now contains all required information to be considered valid.  Follow-up (02Dec2021): This is a spontaneous follow-up report for a Pfizer sponsored program [159558]. A same contactable Consumer (patient) reported that. Updated information included: Classification, Reporter address, patient detail, Other Relevant History, Adverse Event (inflammatory reaction, burning, backpain, difficulty walking), Treatment received, Onset Latency, Concomitant Therapy .Dates for inflammatory reaction, burning, backpain, difficulty walking: (From: Unspecified To: Ongoing).The patient reported about herself and her brother and her sister, they all had both doses of the Pfizer Covid vaccine, they all went in at the same time and they have all developed an inflammatory reaction, burning, back pain, and difficulty walking. She said that for her it slowly started after the first vaccine, after the second dose over the next couple of months she became incapacitated. Brother has had the same issue, xrayed by doctor and nothing was found wrong and was put on pain medications. Over the holidays her sister started having the same reactions and is now on cortisone injections, patient reported that the pain makes you walk funny and then from walking funny other things start hurting. Is this an experienced side effect from people. She reported that they did not all get the vaccine together. She and her siblings are spread out in different. She does not talk to them everyday. She reported that they did all get the Pfizer vaccine. The patient reported that after her first dose of the Pfzier Covid vaccine, she started having some issues, she was walking funny and throwing back out, then after the second dose of the vaccine, when she had gone through everything and it kept getting worse and worse and the chiropractor was not helping. She spoke to her brother her brother reported he was also having a lot of pain walking, he could barely walk in the store, then over thanksgiving he spent the holiday with their other sister and she was having the same problems with the pain and the walking after her first dose as well. The patient reported that she does not have vaccination record card on hand. Unknown exact date of her first vaccine. She reported that burning and back pain and problems walking started about a week after the first dose. She reported that the first one was whatever time required before that. She reported that her brother and sister are both type 1 diabetics, brother was 9 years old at time of diagnosis and her sister was in her 20s. She reported that she is the only one who does not have diabetes.  Follow-up (04Jan2022): This is a follow-up spontaneous report from a contactable consumer. This consumer reported for herself in a cross reference case that included: Updated information included: (Vaccine Information, Vaccination facility type, Vaccination facility address). The patient' s relevant medical history was reported as none. The patient reported that Brother and she was in good health prior to the vaccine. Her sister has multiple health challenges prior. The patient reported that she was is good health, did not take any prescribed medications and live a active life. She walk 5 Miles a day 6 days a week. Following the 1st shot she experienced joint inflammation in her hip and Knees . The inflammation was slowing and after her 2nd shot, (within Two- Three weeks) she started having debilitating pain when ambulating. She still have problems, and not able to walk more than 5-10 mins or without the use of a cane or grocery cart for shopping. Her brother and sister have had the same, Exact Same, symptoms.  Follow up attempts are completed. No further information is expected.