shingles; couldn't sleep; limping; arthritis is acting up/ throbbing, aching, tightening, and painful; pain is in one leg in the thigh; leg was swollen and painful and spread up to her hip; muscle spasms in her legs; This is a spontaneous report from a contactable consumer (patient) reported for herself. A 58-years-old female patient received BNT162B2 (PFIZER-BIONTECH COVID-19 VACCINE), second dose via an unspecified route of administration, administered in left arm on 28Apr2021 09:00 am (Batch/Lot Number: EN6207) as single dose for covid-19 immunisation. Medical history included ongoing diabetes had for about 6-7 years, ongoing arthritis patient has had for years, started when she was little; family medical history included her dad had rheumatic fever and high blood pressure. Concomitant medication(s) included ongoing metformin taken for diabetes. Patient was borderline due being overweight, if she lost weight it would probably go away. History of all previous immunization with the Pfizer vaccine considered as suspect (or patient age at first and subsequent immunizations if dates of birth or immunizations are not available) was none. No additional Vaccines Administered on Same Date of the Pfizer Suspect other than the first dose. Prior Vaccinations (within 4 weeks) was none. Patient received first shot on 02Apr2021 8:40 am (Lot: EP7334) in left arm for covid-19 immunisation. It was noted that with the first shot, there was pain and it turned red at the injection site that last 6 days and then that went away. She took Tylenol and hot water in the shower to treat this event. Caller reported that the first dose just swelled her arm. Expiry and NDC are unknown for both shots. The patient experienced arthritis is acting up/ throbbing, aching, tightening, and painful; pain is in one leg in the thigh; leg was swollen and painful and spread up to her hip and muscle spasms in her legs on 29Apr2021, shingles, couldn't sleep and limping on an unspecified date. Caller stated that she had both doses of the vaccine. Agent called back to verify that the doses were the Pfizer covid 19 vaccine and the date of the second dose. Caller stated that her second dose of the Pfizer covid 19 vaccine was on 28Apr2021. Caller reported that after the second dose she was diagnosed with muscle spasms in her legs by one doctor and the ER doctor told her that her arthritis is acting up. Caller stated it felt like she got the second shot in her leg. Caller reported that the pain is in one leg in the thigh on the side that she got the shot on. Caller stated her doctor wants her to go to a neurologist thinking it could be shingles. Caller stated the doctor called a medication in for her for shingles. Caller stated she was using the heating pad and taking flexeril and neurontin. Caller stated she has not gotten any sleep. Caller stated she missed work yesterday and today. Caller stated she has pain in her legs and wanted to know how long that will last. Caller, reporting on the Pfizer COVID shot, and who explained that after getting the shot her leg started acting up the next morning. She explained that it has been throbbing, aching, tightening, and painful. She went to the emergency room and they told her they think is it is her arthritis; that the shot irritated and made it worse. She was given a shot, they thought maybe it startd with a T or like Tylenol, but it was something for pain. They wanted to give pain medication to take with her but she refused; told them she would just do Aleve and Tylenol. She still got no relief so she went to her medical doctor and they told her it was muscle spasms, the nurse said she could feel a knot. They treated it and that didn't help. Finally her doctor gave her Neurontin yesterday. She has been taking that since 12 noon yesterday through today and she will say it is getting better explaining that she hasn't able sleep but now can get cat naps. Caller reported she is a caretaker, like a medical assistant. She had been missing days from work because of this. The doctor was going to try and find her a specialist, a neurologist. When asked Primary / Prescribing Healthcare caller stated she saw in the emergency room and as a medical doctor because her normal primary care doctor retired. She didn't have contact details for either of these doctors. The shot was given by some people. It was clarified that this was after the second shot. The second shot was on 28Apr2021. She explained she was limping cause it hurts so bad, ever since she got the second shot. Neurontin was started yesterday and since starting it she is better, she was able to sleep some where she couldn't sleep before. Caller reports the product is in a pharmacy bottle with the NDC: 65862-0523-05. Name and NDC captured as provided by the caller. When asked about the products taken that didn't offer relief, everything prior to the Neurontin the caller only had the Flexeril bottle handy. She didn't have the name of the medication, the shot given in the emergency room and didn't want and pain medication from there because she didn't want to get hooked on pain pills. She also took Aleve and Tylenol. Gave her Flexeril, on 06May2021 it was filled. It is in a pharmacy bottle, no manufacturer, Lot or Expiry, NDC: 48547-0400. There are little number and hard to read but confirmed it is in pharmacy bottle. Treatment: she did have blood work but was told her cholesterol and everything was fine, everything was good. AE(s) required a visit to emergency room on 02May2021. And resulted in physician office, doctor on 10May2021. AE(s) following prior vaccinations was none. Caller received her second dose of the covid-19 vaccine and the next day woke up and her leg was swollen and painful and spread up to her hip. Caller went to the emergency room and was given medication which she states helps a little. Investigation included blood test with unknown result on unspecified date. The event outcome for all events was unknown.