arm swelled; My armpit swelled to size of abaseball.; I had extreme pain at theinjection site,; My groin was also painful to the touch; strange numbing sensation andweakness throughout my left side; strange numbing sensation andweakness throughout my left side; My heart raced for about 10 minutes after shot; weakness and tinglingin my arm to my fingertips; tingling in my arm to my fingertips; felt dizzy; muscle spasms on my left side into my face.; my breasts are super tender; I just feel off; foggy headed; This is a spontaneous report from a contactable consumer, the patient. A 44-year-old non- pregnant female patient received first dose of BNT162b2 (PFIZER-BIONTECH COVID-19 mRNA VACCINE; Lot number: En6208) via an unspecified route of administration in the left arm on 16Mar2021 at 14:15 (at the age of 44-years-old) as a dose 1, single for COVID-19 immunization. Medical history included Immune thrombocytopenic purpura (ITP), a really insignificant low platelet count disorder. The patient had a broken foot and a touchy stomach but that was not a real health concern. The patient was not tested allergic to anything other than pollen. It was unknown whether, the patient was diagnosed with COVID-19 prior to vaccination. Concomitant medications were reported as no. The patient did not receive any other vaccines in four weeks prior to COVID-19 vaccination. Since the vaccination, patient had not been tested for COVID-19. On 16Mar2021 at 14:15, the patient felt heart racing for about 10 minutes after shot. The patient had weakness and tingling in the arm to fingertips. The patient also felt mild dizzy. About 24 hours later on 17Mar2021, the patient noticed arm swelling and armpit was swollen to the size of a baseball. The patient had extreme pain at the injection site radiating down the arm and to the left side of the breast. The patient hated the strange numbing sensation and weakness throughout the left side. The patients groin was also painful to the touch. After a week on an unknown date in Mar2021 the swelling had gone down, but the patient had totally random and uncontrollable muscle spasms on the left side of the face. The shot site continued to hurt and the breasts were super tender. The patient felt off and foggy headed. The patient was unsure about taking the second dose. The patient was scared and did not know what to do and also did not want to not get it. strange numbing sensation and weakness throughout my left side. The adverse events resulted in doctor or other healthcare professional office/clinic visit. The patient did not receive any treatment for the events. The clinical outcome of the swelling arm, axillary mass were recovering, and the clinical outcome of the events heart racing, weakness in arms, tingling, dizzy, injection site pain, numbness, groin pain, muscle spasms, breast tenderness, feeling down and foggy headed, strange numbing sensation and weakness throughout my left side was not resolved at the time of this report.  Amendment (26Mar2021): This follow-up report is being submitted to amend previously reported information: Additional PMH "low platelet count disorder" added. Events Physician office visit ticked. Additional coding of "Weakness left or right side" for event "strange numbing sensation and weakness throughout my left side" added, 1st Vaccine letter for NON-HCP initiated.  Follow-up attempts are completed. No further information is expected.