other medical history - chronic autoimmune symptoms; Constipation; Joint pain and stiffness; Joint pain and stiffness; Cognitive issues; loss of common words; brain fog; short term memory loss; concentration issues; other medical history - Fibromyalgia symptoms; other medical history - something is amiss with my heart now; This is a spontaneous report received from a contactable reporter (Consumer or other non HCP). The reporter is the patient.  A 52-year-old female patient (not pregnant) received bnt162b2 (BNT162B2), administered in arm right, administration date 02Sep2021 13:00 (Lot number: FE3592) at the age of 52 years as dose 2, single for COVID-19 immunization. Relevant medical history included: "Treated for parasites previously after chronic autoimmune symptoms" (unspecified if ongoing). The patient's concomitant medications were not reported. Past drug history included: Mefloquine, reactions: "Drug Allergies"; Anthrax, reaction(s): "Drug Allergies". Vaccination history included: Bnt162b2 (Dose Number: 1, Batch/Lot No: EW0169, Location of injection: Arm Left, Vaccine Administration Time: 13:00), administration date: 12Aug2021, when the patient was 52 years old, for Covid-19 Immunization. The following information was reported: AUTOIMMUNE DISORDER (medically significant) with onset 02Sep2021 15:00, outcome "unknown", described as "other medical history - chronic autoimmune symptoms"; CONSTIPATION (medically significant) with onset 02Sep2021 15:00, outcome "not recovered", described as "Constipation"; ARTHRALGIA (medically significant), JOINT STIFFNESS (medically significant) all with onset 02Sep2021 15:00, outcome "not recovered" and all described as "Joint pain and stiffness"; COGNITIVE DISORDER (medically significant) with onset 02Sep2021 15:00, outcome "not recovered", described as "Cognitive issues"; APHASIA (medically significant) with onset 02Sep2021 15:00, outcome "not recovered", described as "loss of common words"; FEELING ABNORMAL (medically significant) with onset 02Sep2021 15:00, outcome "not recovered", described as "brain fog"; AMNESIA (medically significant) with onset 02Sep2021 15:00, outcome "not recovered", described as "short term memory loss"; DISTURBANCE IN ATTENTION (medically significant) with onset 02Sep2021 15:00, outcome "not recovered", described as "concentration issues"; FIBROMYALGIA (medically significant) with onset 02Sep2021 15:00, outcome "unknown", described as "other medical history - Fibromyalgia symptoms"; CARDIAC DISORDER (medically significant) with onset 02Sep2021 15:00, outcome "unknown", described as "other medical history - something is amiss with my heart now". The events "other medical history - chronic autoimmune symptoms", "constipation", "joint pain and stiffness", "joint pain and stiffness", "cognitive issues", "loss of common words", "brain fog", "short term memory loss", "concentration issues", "other medical history - fibromyalgia symptoms" and "other medical history - something is amiss with my heart now" were evaluated at the physician office visit. Therapeutic measures were taken as a result of autoimmune disorder, constipation, arthralgia, joint stiffness, cognitive disorder, aphasia, feeling abnormal, amnesia, disturbance in attention, fibromyalgia, cardiac disorder which included "antibiotics, anti-fungal and anti-parasite." Clinical course: The patient was treated for parasites previously after chronic autoimmune symptoms. "This anti-parasite treatment aided all fibromyalgia symptoms." After the second vaccine, the patient's symptoms returned. The patient's internal medicine doctor believed something was amiss with her heart now. The patient did not receive any other vaccines within four weeks prior to the COVID vaccine. Prior to vaccination, the patient was not diagnosed with COVID-19. Since the vaccination, the patient has not been tested for COVID-19.  Follow-up attempts are completed. No further information is expected.