Feces looked kind of slimy (like gelatin on a canned ham); got up 5-6 times to pee (felt like I was going to bust) but had trouble starting flow; Belly ache in abdomen below navel pretty severe; Gassy; Got up 5-6 times to pee (felt like was going to bust); Head felt stuffy; Like ear aches starting; Slight headache; Fever; Extreme dizziness; Like vertigo had come back; This is a spontaneous report from a contactable consumer, the patient. A 66-year-old non-pregnant female patient received the second dose of BNT162b2 (PFIZER-BIONTECH COVID-19 mRNA VACCINE; Lot Number: EP6955) via an unspecified route of administration in the right arm on 19Mar2021 at 09:00 (at the age of 66-years-old) as a single dose for COVID-19 immunisation. Medical history included heart attack (stent) in May2020 patient reported to be on blood thinners for the same, cyst of kidney, kidney stone, surgery, back pain, shoulder pain and penicillin allergy. Concomitant medications included clopidogrel (MANUFACTURER UNKNOWN), metoprolol (MANUFACTURER UNKNOWN), atorvastatin (MANUFACTURER UNKNOWN), acetylsalicylic acid (ASPIRIN) all from an unknown date for an unspecified indication, and pneumococcal vaccine (MANUFACTURER UNKNOWN) on 19Mar2021 at 09:00 for unspecified indication. The patient previously took first dose of BNT162b2 (PFIZER-BIONTECH COVID-19 mRNA VACCINE; Lot Number: EN6198) via an unspecified route of administration in the left arm on 23Feb2021 at 11:00 (at the age of 66-years-old) as a single dose for COVID-19 immunisation. Prior to the vaccination, the patient was not diagnosed with COVID-19. Since the vaccination, the patient had not been tested for COVID-19. The patient received other vaccines within four weeks prior to the vaccination. On 19Mar2021 at 16:00, the patient experienced slight headache, fever and extreme dizziness like vertigo had come back. On 23Mar2021, the patient experienced fever 100.0 she took one acetaminophen and it subsided; belly ache in abdomen below navel pretty severe, gassy, got up 5-6 times to pee felt like she was going to bust but had trouble starting flow, belly hurt just trying, head felt stuffy and like ear aches starting. On 24Mar2021 at 16:00, the patient experienced belly was tender but nothing like the day before, fever of 100.2 came back and feces looked kind of slimy (like gelatin on a canned ham), she took another acetaminophen. Patient stated that she texted her PCP what she felt all day, napped, drank a lot of water, appetite was normal. She had eaten popcorn on Monday. She stated to take extra fiber con to clean herself out, her PCP texted back on 25Mar2021 asking how she was. On 23Mar2021, the patient underwent body temperature and the result was 100 (UNSPECIFIED UNITS). On 24Mar2021, the patient underwent body temperature and the result was 100.2 (UNSPECIFIED UNITS). The events did not result in doctor or other healthcare professional office/clinic visit, and emergency room/department or urgent care. Therapeutic measures were taken as a result of the events fever, feces looked kind of slimy and included treatment with acetaminophen. The clinical outcome of events slight headache, fever and extreme dizziness like vertigo, belly ache in abdomen, gassy, got up 5-6 times to pee felt like was going to bust but had trouble starting flow, belly hurt just trying, head felt stuffy and like ear aches starting, feces looked kind of slimy (like gelatin on a canned ham) was recovered on an unspecified date in Mar2021.  No follow-up attempts are needed. No further information is expected.