deyhydration; sick; sinus tachycardia; diarrhea; Fever over 102 degrees Fahrenheit; chills; headache; body aches; fatigue; dizziness; Pfizer COVID-19 Vaccine on 12Jan2021 with immunosuppressant mesalamine; Pfizer COVID-19 Vaccine on 12Jan2021 with immunosuppressant mesalamine; will fall asleep through the day for 3-4 hours at a time and she does not even nap usually; Muscle pain; Neck ache; Backache; Problems with walking; problems with balance; This is a spontaneous report from a contactable consumer (patient). A 69-year-old female patient received the first dose of bnt162b2 (Pfizer-Biontech COVID-19 Vaccine, Lot number: EL3246), via an unspecified route of administration on the left arm on 12Jan2021 14:30 at a single dose for covid-19 immunization. Vaccine was not administered in a military facility. Medical history included ongoing ulcerative colitis, ongoing high cholesterol,  ongoing high blood pressure, celiac disease from 2005 (this has been tested too many times to count and it has been negative since after initial diagnosis 2005), arthritis (all her life) ongoing, hip replacement surgeries first done in 2005; repair of same hip in 2015; other hip in 2017. Patient didn't receive any other vaccines within 4 weeks prior to the COVID vaccine. Historical vaccines include Pneumonia Vaccine, Shingles Vaccine and Flu vaccines; all on an unspecified date for immunization. She never had adverse events with those. Ongoing concomitant medications included rosuvastatin (5 mg tablet) for high cholesterol, mesalamine (400 mg capsule) for ulcerative colitis and lisinopril from 2018 for high blood pressure. According to the patient, she knows that mesalamine is an immunosuppressant and anti-inflammatory to keep inflammation in the colon down. This consumer was administered her first dose of Pfizer COVID-19 Vaccine on 12Jan2021 14:30 with immunosuppressant mesalamine. The night of 14Jan2021 patient had headache, chills, body aches, diarrhea, fatigue, fever and dizziness like Covid 19 symptoms. She went to the ER during the past 11 days for IV fluids due to deyhydration from the diarrhea. Today, 25Jan2021 is the first day she has been out of the house, except to go to the ER, since she received her 1st vaccine dose. On Jan2021 muscle pain, neck ache, backache, problems with balance and problems with walking. Events probably started with intense diarrhea starting 14Jan2021; then Fever over 102 degrees Fahrenheit and chills 14Jan2021; Specific onset dates and onset times unknown otherwise other than between 14Jan2021 and 16Jan2021 onset dates. It was a rolling week of agony after that with one adverse event after another until she ended up in the emergency room on 16Jan2021 because she was so dehydrated and was really sick. She was not admitted to the hospital related to any of these events; but while in the emergency room she was given intravenous fluids; a chest x-ray; blood work; after maybe 5-6 hours she was sent home; she was also given a COVID test which was negative; and then 2 days later took another COVID test which was also negative. Both COVID tests were Rapid Tests: on 16Jan2021 and 18Jan2021. On the Chest xray they suggested she had some sinus tachycardia which is just a rapid heartbeat and not surprising; nothing else showed up on Chest x-ray; as far as anything else testing/results wise there was only some facetious blood work which they just said to follow-up with her PCP regarding but nothing really out of the ordinary. She can finally out of bed on a regular basis for a couple of hours daily; she is still very fatigued; she has no muscle pain, neck aches or body aches at this time; she does not have the strength she should have; is no longer experiencing headaches or fever; but is extremely tired. She will fall asleep through the day for 3-4 hours at a time and she does not even nap usually (Jan2021). She has not driven yet but assumes probably once she is a little stronger she will be able to drive again. She did not have upper respiratory, chest or cough issues. The outcome of the events fever, headache, body ache, muscle pain, neck ache was recovered on Jan2021; fatigue was not recovered. The outcome for the other events was unknown.