I started my period for the 3rd time in 1 month on 10/22/21; head cold; chest congestion; lethargy; cough; brain fog; headaches; diarrhea; increased appetite; weakness; shortness of breath; This is a spontaneous report received from a contactable reporter(s) (Consumer or other non HCP). The reporter is the patient.  A 29 year-old female patient received bnt162b2 (BNT162B2), administered in arm left, administration date 15Oct2021 16:30 (Lot number: FH8020) at the age of 29 years as dose 2, single for covid-19 immunisation. Relevant medical history included: "Depression" (unspecified if ongoing); "Anxiety" (unspecified if ongoing); "Chronic Migraine" (unspecified if ongoing); "OCD" (unspecified if ongoing); "PTSD" (unspecified if ongoing). Concomitant medication(s) included: CAMILA taken for contraception; ZOLOFT; ZYRTEC [CETIRIZINE HYDROCHLORIDE]. Vaccination history included: Bnt162b2 (Dose Number: 1, Batch/Lot No: FF8841, Location of injection: Arm Left, Vaccine Administration Time: 04:00 PM), administration date: 24Sep2021, for Covid-19 Immunization. The following information was reported: MENSTRUATION IRREGULAR (non-serious) with onset 22Oct2021, outcome "unknown", described as "I started my period for the 3rd time in 1 month on 10/22/21"; NASOPHARYNGITIS (non-serious) with onset Oct2021, outcome "unknown", described as "head cold"; RESPIRATORY TRACT CONGESTION (non-serious) with onset Oct2021, outcome "unknown", described as "chest congestion"; LETHARGY (non-serious) with onset Oct2021, outcome "unknown", described as "lethargy"; COUGH (non-serious) with onset Oct2021, outcome "unknown", described as "cough"; FEELING ABNORMAL (non-serious) with onset Oct2021, outcome "unknown", described as "brain fog"; HEADACHE (non-serious) with onset Oct2021, outcome "unknown", described as "headaches"; DIARRHOEA (non-serious) with onset Oct2021, outcome "unknown", described as "diarrhea"; INCREASED APPETITE (non-serious) with onset Oct2021, outcome "unknown", described as "increased appetite"; ASTHENIA (non-serious) with onset Oct2021, outcome "unknown", described as "weakness"; DYSPNOEA (non-serious) with onset Oct2021, outcome "unknown", described as "shortness of breath". The events "i started my period for the 3rd time in 1 month on 10/22/21", "head cold", "chest congestion", "lethargy", "cough", "brain fog", "headaches", "diarrhea", "increased appetite", "weakness" and "shortness of breath" were evaluated at the physician office visit. Relevant laboratory tests and procedures are available in the appropriate section. It was unknown if therapeutic measures were taken as a result of menstruation irregular, nasopharyngitis, respiratory tract congestion, lethargy, cough, feeling abnormal, headache, diarrhoea, increased appetite, asthenia, dyspnoea.  Additional Information: Facility where the most recent COVID-19 vaccine was administered was Pharmacy or Drug Store. Reported Event: Menstruated normally from 23Sep2021- 27Sep2021. But then she had her next period a week later from 07Oct21-13Oct2021 and it was heavier and longer and more physically draining/demanding than ever. She started her period for the 3rd time in 1 month on 22Oct2021. She also had a head cold with head and chest congestion, lethargy, cough, brain fog, headaches, diarrhea, increased appetite, weakness, shortness of breath. This started 3 days after the vaccine. She was tested for Covid on 21Oct2021 and it was Negative. Prior to vaccination, patient was not diagnosed with Covid-19. Since the vaccination, patient has been tested for Covid-19. Patient did not receive any other vaccines within 4 weeks prior to the Covid vaccine. Patient received other medications within 2 weeks of vaccination. No known allergies.  No follow-up attempts are possible. No further information is expected.