When it affected her ankles it felt like her skin was going to split; lost the strength in her ankle; booster shot; Her whole left arm got numb and she could not open her hand; arm wa still weak; calf to her foot, her leg was like a block of wood/ it was swelled; Height: Caller stated that she has been shrinking over time; she felt like she's becoming compressed, mentioned she ate more vegetarian; This is a spontaneous report received from contactable reporter(s) (Consumer or other non healthcare professional). The reporter is the patient.  An 84 year-old female patient received bnt162b2 (BNT162B2), administration date 10Dec2021 (Batch/Lot number: unknown) at the age of 84 years as dose 3 (booster), single for covid-19 immunisation. Relevant medical history included: "Rheumatoid arthritis" (ongoing), notes: had this condition for years and years; "Osteoarthritis" (ongoing), notes: had this condition for years and years; "Allergies" (unspecified if ongoing); "thyroid" (unspecified if ongoing), notes: a thyroid medication. Concomitant medication(s) included: SINGULAIR taken for hypersensitivity; TYLENOL taken for arthritis. Vaccination history included: Bnt162b2 (First Dose, Left Arm, Lot: number: EW0182), administration date: 18May2021, when the patient was 83 years old, for Covid-19 Immunization, reaction(s): "arm numb"; Bnt162b2 (First Dose, Left Arm, Lot: number: EW0182), administration date: 08Jun2021, when the patient was 83 years old, for Covid-19 Immunization, reaction(s): "foot swollen", "from the calf to her foot, her leg was like a block of wood", "it is not hot like an infection", "when it affects her ankles it feels like her skin is going to split", "loses the strength in her ankle". The following information was reported: IMMUNISATION (non-serious) with onset 10Dec2021, outcome "unknown", described as "booster shot"; HYPOAESTHESIA (non-serious) with onset Jun2021, outcome "unknown", described as "Her whole left arm got numb and she could not open her hand"; MUSCULAR WEAKNESS (non-serious) with onset 2021, outcome "not recovered", described as "arm wa still weak"; PERIPHERAL SWELLING (non-serious) with onset 2021, outcome "not recovered", described as "calf to her foot, her leg was like a block of wood/ it was swelled"; SKIN DISCOMFORT (non-serious), outcome "unknown", described as "When it affected her ankles it felt like her skin was going to split"; BODY HEIGHT DECREASED (non-serious) with onset 2021, outcome "unknown", described as "Height: Caller stated that she has been shrinking over time"; APPETITE DISORDER (non-serious) with onset 2021, outcome "unknown", described as "she felt like she's becoming compressed, mentioned she ate more vegetarian"; JOINT STIFFNESS (non-serious), outcome "unknown", described as "lost the strength in her ankle". The events "arm wa still weak", "calf to her foot, her leg was like a block of wood/ it was swelled", "height: caller stated that she has been shrinking over time" and "she felt like she's becoming compressed, mentioned she ate more vegetarian" were evaluated at the physician office visit. Relevant laboratory tests and procedures are available in the appropriate section.  The lot number for bnt162b2 was not provided and will be requested during follow up.