Dehydration, hospitalized/dehydrated; My fever broke on Monday; Cruel, incapacitating headache/have such a painful headache that I can't eat; Eye pain; Aversion to food/ can't eat; Constant watery diarrhea despite not much food/diarrhea I have so bad; Constant nausea; Utter and complete lassitude/ exhausted; Being in bed, low energy; Stomach upset; Cough; This is a spontaneous report from a contactable consumer (patient). A 65-year-old female consumer patient received her second dose of BNT162B2 (PFIZER-BIONTECH COVID-19 VACCINE, lot number and expiry date were not reported), via an unspecified route of administration in the left arm on 04Mar2021 16:00 as a single dose for COVID-19 immunisation. Medical history included, in the 1990's, was diagnosed with systemic sclerosis (limited, used to be called CREST scleroderma), pretty severe Raynaud's syndrome, telangiectases, fatigue and sometimes joint aches. Patient was healthy despite this. Patient was not pregnant. The patient was not diagnosed with COVID prior vaccination. Concomitant medications in two weeks included amlodipine besylate, escitalopram oxalate (LEXAPRO), and clonazepam (KLONOPIN). The patient previously received her first dose of BNT162B2 (PFIZER-BIONTECH COVID-19 VACCINE) via an unspecified route of administration in left arm on 11Feb2021 04:00 PM and felt unwell but went to work and was fine in 2 days. On 04Mar2021, it was very different, the patient began having symptoms within 4 hours after receiving vaccine at 9 o clock that night. The patient stated "symptoms worsened and it is one week today and I am still sick. My fever broke on Monday. I still have cruel, incapacitating headache, eye pain, aversion to food (extremely weird for me), constant watery diarrhea despite not much food, constant nausea, utter and complete lassitude, dehydration (hospitalized, 2 liters of fluids), pain meds and anti-nausea meds. I have missed a week of work and this is a serious issue for many. I am OK but using precious sick time." Events resulted in doctor or other healthcare professional office/clinic visit and emergency room/department or urgent care. Patient stated "I missed whole week to work and I'm still sick. I have had so many different symptoms and some have gone away like my fever is gone but I have such a painful headache that I can't eat, nausea and constant diarrhea, you get the idea. I'm not against the vaccine but I think it would be good if people like me, people that have had my experience know, I hope it's within the normal range, I still don't know I would love to talk to somebody and find out if what I am experiencing is in the normal range, but it's not, people saying they experience so far the kind of the level of being in bed, low energy, unable to eat, fever, headache, stomach upset, I didn't have a cold, I had respiratory, I had a cough that has cleared up. I was hospitalized yesterday with fluids to become hydrated. It's important for us, you know, I mean, I leave the work that not good, people need to be prepared, it should be sick time I think it's important there is a follow up, absolutely. I was very happy I got the vaccine but I am so sick and it's been a week today so, that's why I decided to call and I was in the hospital yesterday, getting fluids dehydrated and I was admitted (reason for hospitalization was not clarified). I wasn't admitted, I was in the hospital for the day on IV fluids, anti-nausea medication, pain medication also, 3 things they gave me in an IV. They sent me home but the diarrhea I have so bad, I'm exhausted, but I have to spent all my time in the toilet, I thought today might be, I might wake up it would be healing today but I'm still pretty sick." Outcome of fever and cough was recovered, and of remaining events was not recovered. The patient underwent COVID-19 virus test via nasal swab on 03Mar2021 with negative result.  Information about lot/batch number has been requested.