Menstruated normally from 9/23/21-9/27/21. But then I had my next period a week later from 10/7/21-10/13/21 and it was heavier and longer and more physically draining/demanding than ever.; It was heavier and longer and more physically draining/demanding than ever.; it was heavier and longer and more physically draining/demanding than ever.; 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), Solution for injection, administered in arm left, administration date 24Sep2021 16:00 (Lot number: FF8841) at the age of 29 years as dose 1, 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: CAMILLA taken for contraception; ZOLOFT; ZIRTEC. The following information was reported: MENSTRUATION IRREGULAR (non-serious) with onset 07Oct2021, outcome "unknown", described as "Menstruated normally from 9/23/21-9/27/21. But then I had my next period a week later from 10/7/21-10/13/21 and it was heavier and longer and more physically draining/demanding than ever."; HEAVY MENSTRUAL BLEEDING (non-serious) with onset 07Oct2021, outcome "unknown", described as "It was heavier and longer and more physically draining/demanding than ever."; HEAVY MENSTRUAL BLEEDING (non-serious) with onset 07Oct2021, outcome "unknown", described as "it was heavier and longer and more physically draining/demanding than ever.". The events "menstruated normally from 9/23/21-9/27/21. but then i had my next period a week later from 10/7/21-10/13/21 and it was heavier and longer and more physically draining/demanding than ever.", "it was heavier and longer and more physically draining/demanding than ever." and "it was heavier and longer and more physically draining/demanding than ever." 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, heavy menstrual bleeding, heavy menstrual bleeding.  Additional Information:The Facility where the most recent COVID-19 vaccine was administered was Pharmacy or Drug Store. The patient had not received any other vaccines within 4 weeks prior to the COVID vaccine. The patient had received Camilla Birth Control, Zoloft 50mg, zertec 24hr within 2 weeks of vaccination. Patient 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. Patient had not been diagnosed with COVID-19 prior to vaccination and had been tested COVID-19 since the vaccination  No follow-up attempts are possible. No further information is expected.