vomiting; Diarrhea; really painful in stomach; couldn't sleep; nausea; headaches; fever; perspiring; chills; flu-like symptoms; weakness; This is a spontaneous report from a contactable consumer (patient) reported for herself. A 70-year-old female patient received bnt162b2 (PFIZER-BIONTECH COVID-19 VACCINE), dose 1 via an unspecified route of administration, administered in Arm Right on 30Mar2021 12:30 (Lot Number: ER8733; Expiration Date: 31Jul2021) at single dose for covid-19 immunisation.  Medical history included migraine, acne, high blood pressure, thyroid disorder, anxiety, ulcers and blood potassium decreased. Concomitant medications included topiramate taken for migraine, she began taking years ago and doesn't remember, she did not take this medication last night because she was afraid she might throw it up; doxycycline taken for acne from 2018 (began taking maybe about three years ago); ramipril taken for high blood pressure, began taking ages ago, forever, have been taking for a long, long time; levothyroxine taken for thyroid disorder from 2020 (began taking fairly recently, about a year ago); sertraline taken for anxiety, began taking a long time ago, a long time ago, years; metoprolol, heart doctor prescribed it, not quite sure about indication, from 2020 (began taking about 6 months ago); omeprazole taken for ulcers from 2006 (began taking a long time ago, again, that was a long time ago, maybe 15 years); potassium taken for potassium low from 2018 (three years ago). Patient stated she had several medications that she takes daily. Reported she hasn't taken any of her medications today or yesterday (as of 06Apr2021) because she was afraid she would vomit them up. No other vaccines were administered on same Date or within 4 weeks. Patient stated that she received the first dose of the Pfizer COVID-19 vaccine on 30Mar2021 and she had been experiencing some "flu-like symptoms" including: vomiting, diarrhea, chills and weakness. Flu-like symptoms started from 30Mar2021. Patient reported vomiting and diarrhea, stated it really felt like the flu. Patient has had headaches, chills, fever. Vomiting: patient stated she vomited up so much that she thought she was starting to feel a bit better, patient doesn't think there is anything left in her. Reported she started to get a headache. Patient was concerned last night, because at first she just had the chills and headache, but then started to really feel flu like. Flu like symptoms: reported perspiring, vomiting and diarrhea and it was really painful in her stomach. As soon as patient could get rid of the bile and nausea in stomach, she felt a little bit better. Patient reported she was very weak. She had the flu a couple of years ago and it felt exactly like this. Patient reported she had chills and a headache and nausea. Reported the chills and headache began the same day she received Pfizer Covid Vaccine dose one on 30Mar2021. Vomiting/diarrhea: These symptoms began yesterday (05Apr2021), all day and all night. May have had a little the day before. Patient reported she was scared last night because she couldn't stop vomiting. Headache: reported the headache came right away, the same day caller received the Pfizer Covid Vaccine, later on that evening (30Mar2021). Fever: reported being really sweaty and having chills, but didn't take temperature. Patient could tell she had fever because she was shivering. This began the same day she received Pfizer Covid Vaccine (30Mar2021). Really painful in stomach: This began yesterday (05Apr2021), all day and all last night. Nausea: this began yesterday (05Apr2021), reported she was very nauseous, extremely nauseous, patient couldn't sleep and just wanted to get rid of the nausea. The patient would like to know if these are side effects associated with the Pfizer COVID-19 vaccine since she read most symptoms go away within a few days and it had now been a week since she received her first dose. The adverse events didn't result in emergency room or physician office. Stated she would be receiving another dose of the Pfizer Covid Vaccine on 20Apr2021. Relevant Tests were none. Outcome of events was recovering, patient reported she was feeling a little better now than she was yesterday, she was feeling a little better now, not 100%, a little nauseous. The report is non-serious.  No follow-up attempts are needed. No further information is expected.