Pain is constant; have degenerative disk, back, knees, and foot; I had to use a cane to walk/I can hardy walk or stand; Pain in these joints has been 10 fold worse than previously experienced; I get back spasms and worse is the right leg where I get a twitch in the back of the knee that turns the lower portion including the foot, outward; I get back spasms and worse is the right leg where I get a twitch in the back of the knee that turns the lower portion including the foot, outward; This is a spontaneous report received from a contactable reporter(s) (Consumer or other non HCP). The reporter is the patient.  A 70 year-old male patient received bnt162b2 (BNT162B2), administered in arm right, administration date 24Nov2021 (Lot number: ff8841) at the age of 70 years as dose 3 (booster), single for covid-19 immunisation. Relevant medical history included: "known allergies" (unspecified if ongoing). The patient's concomitant medications were not reported. Vaccination history included: Bnt162b2 (Dose Number: 2, Batch/Lot No: er8735, Location of injection: Arm Left), administration date: 18Apr2021, when the patient was 70 years old, for COVID-19 Immunization; Bnt162b2 (Dose Number: 1, Batch/Lot No: er2613, Location of injection: Arm Right), administration date: 28Mar2021, when the patient was 70 years old, for COVID-19 Immunization. The following information was reported: INTERVERTEBRAL DISC DEGENERATION (non-serious) with onset 25Nov2021, outcome "not recovered", described as "have degenerative disk, back, knees, and foot"; GAIT DISTURBANCE (non-serious) with onset 25Nov2021, outcome "not recovered", described as "I had to use a cane to walk/I can hardy walk or stand"; ARTHRALGIA (non-serious) with onset 25Nov2021, outcome "not recovered", described as "Pain in these joints has been 10 fold worse than previously experienced"; MUSCLE SPASMS (non-serious), MUSCLE TWITCHING (non-serious) all with onset 25Nov2021, outcome "not recovered" and all described as "I get back spasms and worse is the right leg where I get a twitch in the back of the knee that turns the lower portion including the foot, outward"; PAIN (non-serious), outcome "not recovered", described as "Pain is constant". The events "have degenerative disk, back, knees, and foot", "i had to use a cane to walk/i can hardy walk or stand", "pain in these joints has been 10 fold worse than previously experienced", "i get back spasms and worse is the right leg where i get a twitch in the back of the knee that turns the lower portion including the foot, outward", "i get back spasms and worse is the right leg where i get a twitch in the back of the knee that turns the lower portion including the foot, outward" and "pain is constant" were evaluated at the physician office visit. Therapeutic measures were not taken as a result of intervertebral disc degeneration, gait disturbance, arthralgia, muscle spasms, muscle twitching, pain.  Additional information: Prior to vaccination, the patient was not diagnosed with COVID-19. The patient did not receive any other vaccines within 4 weeks prior to the COVID vaccine. Since the vaccination, the patient had not been tested positive for COVID-19. The patient did not receive any treatment for the adverse events.  No follow-up attempts are possible. No further information is expected.