I bent over and I could hardly get up; when I sit down I want to shut my eyes but yet I cannot sleep; It takes all my energy just to do something; Rheumatoid arthritis; my back hurts specially the lower back; Lost my appetite. I have to force my self to eat as I don't want to eat anymore; It (arm) is still sore and the pain shot up to my shoulder, and that pain comes and goes; Pulled muscle; I could not move my arm around for a couple days; My stomach hurts at right side; It (arm) is still sore; Tired; This is a spontaneous report from a contactable consumer (patient). A 71-years-old female patient received first dose of bnt162b2 (PFIZER-BIONTECH COVID-19 mRNA VACCINE, Solution for injection) via an unspecified route of administration in left arm on 08Apr2021 (Batch/Lot Number: ER8729) and second dose of bnt162b2 (PFIZER-BIONTECH COVID-19 mRNA VACCINE, Formulation: Solution for injection) via an unspecified route of administration in left arm on 29Apr2021 (Batch/Lot Number: ER8736) both as a single dose for COVID-19 immunization. Age at vaccination was 71-years-old. Medical history included blood cholesterol, high blood pressure, restless legs syndrome (Patient mentioned that she has restless leg syndrome for that she was given something but did not work so she does not even take it. The doctor gave her something that was really for parkinson's, but she was never diagnosed with parkinson's. She does not take it and it doesn't help and she does better without it.) and reflux. Concomitant medications included rosuvastatin taken for blood cholesterol, hydrochlorothiazide, triamterene (TRIAMTERENE AND HYDROCHLOROTHIAZIDE) taken for high blood pressure and omeprazole 40 mg taken for reflux, colecalciferol (VITAMIN D3) for unknown indication. Patient reported that back in April, it was the beginning and the end, patient had that two shots of Pfizer vaccine (confirmed as Pfizer COVID vaccine) and since then patient had been extremely tired and never felt like this before and it's a tired that patient couldn't explain, when she sat down she wanted to shut her eyes but yet she could not sleep (Apr2021). Patient mentioned that if she had 20 hours of sleep since April, she was lucky. It took all her energy just to do something. Patient further reported that that was not the only thing, in the beginning, she got a shot, she understands her arm hurts because she does get vaccinated every year (further not clarified) and her arm gets sore but this time it was still sore and the pain shot up to her shoulder, and that pain comes and goes. Patient confirmed she was still experiencing the pain. Last month (Jul2021), she bent over and she could hardly get up. She went to numerous visits to doctors, and at first the doctor said she pulled a muscle, the doctor gave her a shot for pain, pain meds and muscle relaxant (names not clarified), which she didn't like to take but she took them anyway but they did not help. So, she called her doctor, and she went to see the physician assistant who did not do anything and said she wanted more drugs. Patient went back to patient first and demanded to have X-rays of her back, to which doctor said no, you don't need it. She said her stomach hurts at right side and her back hurts, especially the lower back, X-rays were taken and confirmed as rheumatoid arthritis. She was extremely tired. Patient thought she lost 5 pounds. She also lost her appetite. She had to force herself to eat as she did not want to eat anymore. Patient could not move her arm around for a couple days. On an unspecified date, the patient underwent lab test which included X-rays: rheumatoid arthritis and blood work: Low (vitamin D level was low) work was done, she thought it was before the COVID-19, but she was not sure. Her vitamin D level was low so she was told to take vitamin D3. The outcome of the event I bent over and I could hardly get up it was not recovered while for the other event was unknown.   Follow-up attempts are completed. No further information is expected.