neurological; inflammatory reaction; burning; back pain; difficulty walking; the side effects were a functional issue affecting quality of life./the second dose nearly incapacitated her; This is a spontaneous report received from a contactable reporter(s) (Consumer or other non HCP) from medical information team for a Pfizer sponsored program. The reporter is the patient.  A 65 year-old female patient received bnt162b2 (COMIRNATY), administration date 15Apr2021 (Batch/Lot number: unknown) at the age of 65 years as dose 2, single for covid-19 immunisation. Relevant medical history included: "No" (unspecified if ongoing). There were no concomitant medications. Vaccination history included: Bnt162b2 (dose: 1), for COVID-19 immunization, reaction(s): "inflammatory reaction"; Bnt162b2, for COVID-19 immunization, reaction(s): "back pain", "burning", "difficulty walking".  The following information was reported: NERVOUS SYSTEM DISORDER (non-serious) with onset Apr2021, outcome "unknown", described as "neurological"; INFLAMMATION (non-serious) with onset Apr2021, outcome "not recovered", described as "inflammatory reaction"; BURNING SENSATION (non-serious) with onset Apr2021, outcome "not recovered", described as "burning"; BACK PAIN (non-serious) with onset Apr2021, outcome "not recovered", described as "back pain"; GAIT DISTURBANCE (non-serious) with onset Apr2021, outcome "not recovered", described as "difficulty walking"; LOSS OF PERSONAL INDEPENDENCE IN DAILY ACTIVITIES (non-serious) with onset Apr2021, outcome "not recovered", described as "the side effects were a functional issue affecting quality of life./the second dose nearly incapacitated her".  Additional information: Patient was in Pfizer programme and calling about herself and her brother and her sister, states they all had both doses of the Pfizer Covid vaccine. Patient had a side effect after the first dose of the vaccine. She said that for her it slowly started after the first vaccine. She had a question about the side effects she is experiencing. She reported an inflammatory reaction specifically stating burning, back pain and difficulty walking and stated the side effects were continuing 6 months later. She said the side effects were a functional issue affecting quality of life. The second dose nearly incapacitated her over the next couple of months. She asked if her side effects were neurological and if they were neurological, whether it going to go away, also how can her HCP determine if it was long term or short term. She stated her siblings experienced the same inflammatory response and other people she has talked to experienced problems. Patient reported that the pain makes you walk funny and then from walking funny other things start hurting. She confirmed 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 had no medical history and did not have other product. There was no investigation assessment.  No follow-up attempts are possible. No further information is expected.