Chills; Her blood pressure also was 125/90 and her pulse was 115 and this lasted about 10-12 hours.; Her blood pressure also was 125/90 and her pulse was 115 and this lasted about 10-12 hours.; pressure headaches; got really sick after the second dose; pain; This is a spontaneous report received from contactable reporter(s) (Consumer or other non HCP). The reporter is the patient.  A 46 year-old female patient received bnt162b2 (BNT162B2), administered in arm left, administration date 09May2021 11:00 (Lot number: EW0172) at the age of 46 years as dose 2, single for covid-19 immunisation. Relevant medical history included: "Hydrocephalus" (ongoing), notes: Verbatim: Hydrocephalus; "Supraventricular tachycardia" (ongoing), notes: She also added, she may mitral valve prolapse, but she is not sure. Family history included: "Extensive cardiac history" (unspecified if ongoing), notes: Her mother has an extensive cardiac history. The patient took concomitant medications. Vaccination history included: Bnt162b2 (Dose:1, administered in left arm, Batch/Lot number: EW0172), administration date: 15Apr2021, when the patient was 45 years old, for Covid-19 immunization; Flu vaccine (Over the decades she has felt a little tired and a little sick from the flu vaccine, but nothing like this.), reaction(s): "Little sick from the flu vaccine". The following information was reported: CHILLS (non-serious) with onset May2021, outcome "recovered" (May2021), described as "Chills"; HYPERTENSION (non-serious), HEART RATE INCREASED (non-serious) all with onset May2021, outcome "recovered" (May2021) and all described as "Her blood pressure also was 125/90 and her pulse was 115 and this lasted about 10-12 hours."; HEADACHE (non-serious) with onset May2021, outcome "recovered" (May2021), described as "pressure headaches"; ILLNESS (non-serious) with onset May2021, outcome "unknown", described as "got really sick after the second dose"; PAIN (non-serious) with onset May2021, outcome "unknown", described as "pain". Relevant laboratory tests and procedures are available in the appropriate section. Additional information: Ten hours after getting the second dose. The horrible chills portion of it lasted a few hours with the pain,. The horribleness went away within 3 hours, but it took about ten hours for the rest of chills to go away. The pain in her head was with the pressure headache. It coincided with the blood pressure issues. She initially stated it started within 10-15 hours of getting vaccine. However, later stated everything pretty much started around the same time. This headache was pretty much gone within 10 hours. Her blood pressure also was 125/90 and her pulse was 115 and this lasted about 10-12 hours. Vaccine Administered at Military Facility. Concomitant Medications: The patient was on a little bit of natural supplements, but nothing other than that. No additional Vaccines Administered on Same Date of the Pfizer Suspect. The patient did not visit Emergency Room/Physician's office. The patient did not receive prior vaccinations within 4 weeks. Over the decades the patient had felt a little tired and a little sick from the flu vaccine, but nothing like this. No one in the family had allergic reactions or anything. No follow-up attempts are possible. No further information is expected.