arm swelled really bad and she lost the strength and sensation in it; arm swelled really bad and she lost the strength and sensation in it; arm swelled really bad and she lost the strength and sensation in it; shot was given to her three fingers above her elbow; shot was given to her three fingers above her elbow; arm doubled in size and it was all red; arm doubled in size and it was all red; extreme pain in that arm; feels a little round ball that floats around between her elbow and shoulder; This is a spontaneous report from a contactable consumer (patient). A female patient of an unspecified age received second dose BNT162B2 (PFIZER-BIONTECH COVID-19 VACCINE, solution for injection, lot number and expiry date was not reported), via an unspecified route of administration on 13Apr2021 08:30 as DOSE 2, SINGLE for COVID-19 immunisation. The patient medical history was not reported. Concomitant medications included gabapentin (GABAPENTIN) taken for an unspecified indication, start and stop date were not reported, tramadol hydrochloride (ULTRAME) taken for an unspecified indication, start and stop date were not reported. Previously the patient received first dose of BNT162B2 (lot number not reported), on an unknown date for COVID-19 immunization. On 13Apr2021 after the vaccination the patient worked all day. The shot was given to her three fingers above her elbow and she did not have COVID or flu symptoms. The next day (14Apr2021) the patient's arm swelled really bad and she lost the strength and sensation in it. The patient works in the hospital and she does not think it was the vaccine but the way it was administered because when it was injected her arm flickered up. The caller didn't get body aches or a fever but her arm doubled in size and it was all red. When the caller goes to therapy they find the ball move all over her arm, the size of a golf ball. The caller thinks he struck a nerve and the nerve is reacting to the needle and the vaccine. The patient had been getting therapy but she still feels a little round ball that floats around between her elbow and shoulder. And also has extreme pain in that arm and has been taking Gabapentin and Ultram. The patient still can't close her hand fully, she can use her hand but at night time the pain was unbearable. The patient was in therapy three times a week. The doctor that was seeing the caller are now refusing to continue therapy. The caller was supposed to get a nerve block tomorrow but they would not do it. The caller filed a CICP application and hasn't heard from anyone. The issue is that the caller tried to get workers compensation and they denied her and right now she is stuck in the middle of all. The caller has never had covid and saw that Pfizer didn't have any side effects. The bills are killing the caller, she is about to get evicted. The patient doesn't feel like her arm is going to ever be the same again. The caller went to the emergency hospital on 14Apr2021, and the doctor wrote that what caused this was how it was administered. The caller was started on an antibiotic and anti inflammatory as corrective therapy. The outcome of events shot was given to her three fingers above her elbow (off label use) (product administered at inappropriate site) was unknown and other events was not recovered.  Information on the lot/batch number has been requested.  Follow-up (20Aug2021): This follow-up is being submitted to notify that the batch/lot number is not available despite the follow-up attempts made. Follow-up attempts have been completed and no further information is expected.