fever; feeling out of body experience; diarrhea; in tears from intensity of the sensation; visual pictures that were kind of ridiculous and seeing things; Severe headaches; Heard a lot of noises in head; body hurting severely where she couldn't walk; body hurting severely where she couldn't walk; no appetite; nauseas; This is a spontaneous report from a contactable healthcare professional (patient). A 62-year-old female patient received second dose of BNT162B2 (PFIZER-BIONTECH COVID-19 VACCINE, Solution for injection; Lot Number: EN6205) via an unspecified route of administration, administered in Arm Left, at the age of 62-year-old, on 18Mar2021, as SINGLE DOSE for covid-19 immunisation.  Medical history included covid-19 from Oct2020. The patient's concomitant medications were not reported. The patient previously received flu shot as immunization and did not get any reactions and first dose of BNT162B2 (PFIZER-BIONTECH COVID-19 VACCINE; lot EN6205) on 28Feb2021, single dose for covid-19 immunisation and experienced very achy, some fever, some diarrhea, one episode and a big headache, difficulty Sleeping, and intense sensations. The patient experienced severe side effects/ bad reactions three weeks after receiving the second dose of vaccine. The patient experienced visual pictures that were kind of ridiculous and seeing things (medically significant) on 19Mar2021 with outcome of recovered on 21Mar2021, severe headaches (non-serious) on 19Mar2021 with outcome of recovered on 21Mar2021, heard a lot of noises in head (non-serious) on 19Mar2021 with outcome of recovered on 21Mar2021, body hurting severely where she couldn't walk (non-serious) on 18Mar2021 with outcome of recovered on 21Mar2021, fever (non-serious) on an unspecified date with outcome of recovered on 21Mar2021, diarrhea (non-serious) on 19Mar2021 with outcome of recovered on 21Mar2021, in tears from intensity of the sensation second half of the day after receiving Pfizer Covid Vaccine (non-serious) on 19Mar2021 with outcome of recovered on 21Mar2021, no appetite (non-serious) on 18Mar2021 with outcome of unknown, nauseas (non-serious) on 18Mar2021 with outcome of unknown, feeling out of body experience (non-serious) on an unspecified date with outcome of unknown. The diarrhea was reported as much more intense. The patient doesn't know how else to describe it, except it was very intense and severe. No appetite and nauseas which lasted 2-3 days, it's almost like feeling out of body experience. The events did not require a visit to Emergency room or Physician office. The patient did not receive vaccination within 4 weeks prior vaccination. No relevant tests performed.; Sender's Comments: Based on the close temporal relationship, the association between the event "seeing thingis" with BNT162b2 can not be completely excluded.  The impact of this report on the benefit/risk profile of the Pfizer product is evaluated as part of Pfizer procedures for safety evaluation, including the review and analysis of aggregate data for adverse events. Any safety concern identified as part of this review, as well as any appropriate action in response, will be promptly notified to regulatory authorities, Ethics Committees, and Investigators, as appropriate.