from the calf to her foot, her leg was like a block of wood/ it was swelled and you could not make an indent in it; but this swelling you cannot even put a dimple in it/leg is swollen and puffy; it is not hot like an infection; when it affects her ankles it feels like her skin is going to split; it makes her immobile in a way because she goes to walk and loses the strength in her ankle; it makes her immobile in a way because she goes to walk and loses the strength in her ankle; leg is swollen and puffy.At night it gets worse; This is a spontaneous report received from contactable reporter(s) (Consumer or other non HCP). The reporter is the patient.  A 83 year-old female patient received bnt162b2 (BNT162B2), administered in arm left, administration date 08Jun2021 (Lot number: EW0185) at the age of 83 years as dose 2, single for covid-19 immunisation. Relevant medical history included: "Rheumatoid arthritis" (ongoing), notes: Verbatim: Rheumatoid arthritis, Caller states that she has had this, condition for years and years.; "Osteoarthritis" (ongoing), notes: Verbatim: Osteoarthritis, Caller states that she has had this, condition for years and years.; "Thyroid" (unspecified if ongoing); "Allergies" (unspecified if ongoing). Concomitant medication(s) included: TYLENOL taken for arthritis; SINGULAIR taken for hypersensitivity. Vaccination history included: Bnt162b2 (Dose 1, Batch/lot number EW0182, Anatomical location; Left Arm, NDC, Expiry, Date: Unknown), administration date: 18May2021, when the patient was 83 years old, for COVID-19 Immunization, reaction(s): "her whole arm went numb and she couldn't open her hand and her arm is still weak", "her whole arm went numb and she couldn't open her hand and her arm is still weak". The following information was reported: MUSCULOSKELETAL STIFFNESS (non-serious) with onset Jun2021, outcome "not recovered", described as "from the calf to her foot, her leg was like a block of wood/ it was swelled and you could not make an indent in it"; PERIPHERAL SWELLING (non-serious) with onset 2021, outcome "not recovered", described as "but this swelling you cannot even put a dimple in it/leg is swollen and puffy"; SKIN WARM (non-serious) with onset 2021, outcome "not recovered", described as "it is not hot like an infection"; SKIN DISCOMFORT (non-serious) with onset 2021, outcome "not recovered", described as "when it affects her ankles it feels like her skin is going to split"; JOINT STIFFNESS (non-serious), MOBILITY DECREASED (non-serious) all with onset 2021, outcome "not recovered" and all described as "it makes her immobile in a way because she goes to walk and loses the strength in her ankle"; CONDITION AGGRAVATED (non-serious) with onset 2021, outcome "not recovered", described as "leg is swollen and puffy.At night it gets worse". The events "from the calf to her foot, her leg was like a block of wood/ it was swelled and you could not make an indent in it", "but this swelling you cannot even put a dimple in it/leg is swollen and puffy", "it is not hot like an infection", "when it affects her ankles it feels like her skin is going to split", "it makes her immobile in a way because she goes to walk and loses the strength in her ankle", "it makes her immobile in a way because she goes to walk and loses the strength in her ankle" and "leg is swollen and puffy.at night it gets worse" were evaluated at the physician office visit.  Additional information: Reporter stated that she is calling about the reactions she had with the shots and the booster shot. Reporter stated that after the first shot her whole left arm got numb and she could not open her hand. Stated that arm is still weak. 08Jun2021 she got the second shot in the same arm at (withheld). The man there told her she might have a little reaction.  Reporter stated that within 24 hours, from the calf to her foot, her leg was like a block of wood. States it was swelled and you could not make an indent in it. Stated that she thought it would go away, but it has been ongoing since then. Reporter stated that she asked her pharmacist and they had never heard anything like this. She went to her cardiologist and they told her it is just water. She told them it is not water, she's retained water before; but this swelling you cannot even put a dimple in it. The doctor put her taking Furosemide one day and her usual medication the other days. Reporter stated that in the mornings the leg is swollen and puffy. At night it gets worse. Stated that when it affects her ankles it feels like her skin is going to split. States it is not hot like an infection. Reporter stated that she is just curious because her pharmacist has never heard of this before. Reporter stated that she seldom gets reactions besides maybe a little headache and a little tired. Said this is different and is ongoing. She just wants it to go away.  Stated it makes her immobile in a way because she goes to walk and loses the strength in her ankle. Is there anything she can take for it? Reporter stated that she has Rheumatoid Arthritis and Osteoarthritis. States this is not the same thing. This is different, its like a funny weird stiff numbness like the skin doesn't want to move. It is not a pain. Reporter stated that she saw two people on withheld News that had kind of like what she has. States that one of them, a man, was completely immobile from it.  Reporter stated that she just got up and her ankle gave out. States she is okay, she is by a chair. Reporter stated that she has not been to see her HCP; but is due to go see her soon. Reporter stated she just found a place to have her bloodwork done, since a lot of places are closed due to Covid. Reporter denied any other medications relevant to these events. Caller then mentions she only takes Tylenol for her arthritis; Singulair and an Inhaler for allergies as needed, seasonally; and a thyroid medication.  No follow-up attempts are possible. No further information is expected.