heartbeat reached 150bpm; feet changing colors/ like frozen; numbness in her lower extremities/calf tightness and squeezing; numbness in her lower extremities/calf tightness and squeezing; lots of diarrhea; Vision change more blurry; Muscle weakness; dizziness/ losing balance; headaches; hurt all over her body "like a trauma",; bones hurt; chest tightness; muscle aches; fatigue/rebound fatigue; This is a spontaneous report received from contactable reporter(s) (Consumer or other non HCP) from medical information team. The reporter is the patient.  A 39 year-old female patient received BNT162b2 (PFIZER-BIONTECH COVID-19 MRNA VACCINE), administered in arm right, administration date 20Aug2021 18:00 (Lot number: FA6780) at the age of 39 years as dose 1, single for covid-19 immunisation. Relevant medical history included: "non smoker" (unspecified if ongoing). She stated she is a "40 year-old" mother of 4, non-smoker, drinks no caffeine, doesn't use tobacco, no food allergies, no history of asthma, a healthy woman who uses treadmill and very active. There was no additional vaccines administered on the same date. There were no prior vaccinations within 4 weeks. Concomitant medication(s) included: VITAMIN D NOS (ongoing); VITAMIN C (ongoing). The following information was reported: She stated she received her first dose of the vaccine last 20Aug2021 and six days after she was not feeling well. She experienced muscle aches and fatigue within 48 hrs after the administration; the first 24-48 hours she had body aches and fatigue then she started to feel her whole body aching the following Saturday which was about 6-7 days later and that is when the dizziness, weird headaches, really bad fatigue/ rebound fatigue, muscle weakness, bone pain, calf tightness and squeezing, and now all over her body hurts, like trauma, chest tightness and she's still experiencing these 3 months later. She had a very high heart beat, vision changes- it is more blurry, losing her balance, and the color of her feet changed like frozen. After 6 days of experiencing these symptoms, she was brought to the ER as her heartbeat reached 150bpm. Recently, she stated she experienced her feet changing colors, numbness in her lower extremities, and lots of diarrhea. The patient experienced events TACHYCARDIA (medically significant) with onset 28Aug2021, outcome "not recovered", described as "heartbeat reached 150bpm"; DIZZINESS (medically significant) with onset 27Aug2021, outcome "not recovered", described as "dizziness/ losing balance"; MYALGIA (non-serious) with onset Aug2021, outcome "not recovered", described as "muscle aches"; FATIGUE (non-serious) with onset Aug2021, outcome "not recovered", described as "fatigue/rebound fatigue"; HEADACHE (non-serious) with onset 27Aug2021, outcome "not recovered", described as "headaches"; PAIN (non-serious) with onset 27Aug2021, outcome "not recovered", described as "hurt all over her body "like a trauma","; BONE PAIN (non-serious) with onset 27Aug2021, outcome "not recovered", described as "bones hurt"; CHEST DISCOMFORT (non-serious) with onset 27Aug2021, outcome "not recovered", described as "chest tightness"; SKIN DISCOLOURATION (non-serious) with onset 28Aug2021, outcome "not recovered", described as "feet changing colors/ like frozen"; MUSCLE TIGHTNESS (non-serious), HYPOAESTHESIA (non-serious) all with onset 28Aug2021, outcome "not recovered" and all described as "numbness in her lower extremities/calf tightness and squeezing"; DIARRHOEA (non-serious) with onset 28Aug2021, outcome "unknown", described as "lots of diarrhea"; VISION BLURRED (non-serious) with onset 28Aug2021, outcome "not recovered", described as "Vision change more blurry"; MUSCULAR WEAKNESS (non-serious) with onset 28Aug2021, outcome "not recovered", described as "Muscle weakness". The events "heartbeat reached 150bpm", "dizziness/ losing balance" were evaluated at the physician office visit and emergency room visit. The events "muscle aches", "fatigue/rebound fatigue", "headaches", "hurt all over her body "like a trauma",", "bones hurt", "chest tightness", "feet changing colors/ like frozen", "numbness in her lower extremities/calf tightness and squeezing", "lots of diarrhea", "vision change more blurry" and "muscle weakness" were evaluated at the physician office visit. She already visited a regular doctor, a neurologist, a rheumatologist, a cardiologist, a family doctor over five times as well as a specialist for vertigo and she's currently undergoing physical therapy for her leg. She went to the ER once. She states no one knows what is going on.  The patient underwent the following laboratory tests and procedures: blood test: normal; heart rate: 150bpm; lyme disease: unknown results; magnetic resonance imaging: normal/ neg.  Treatment included TYLENOL. Therapeutic measures were taken as a result of myalgia, headache, pain, bone pain, muscle tightness, hypoaesthesia. The reported stated she just has a feeling something is behind the vaccine.  Follow-up (29Nov2021): Follow-up attempts are completed. No further information is expected.