lots of inflammation in her chest/inflammatory build up of some kind/inflammation with breastfeeding; lots blebs, which are thickened milk at the base of the nipple; they saw a mass because of the clogged duct/then a mammogram, there was a mass seen; she had some headaches because her vision was imbalanced; flu symptoms; body aches; lactation related cyst; She occasionally gets migraines; visible clogged duct that was red, inflamed and hot to the touch; sudden blindness; partially blind in one eye; diagnosed multiple evanescent white dot syndrome; She got the vaccine when her daughter was 2 weeks old; She got the vaccine when her daughter was 2 weeks old; Mastitis/recurring subclinical mastitis; This is a spontaneous report received from contactable reporter(s) (Consumer or other non HCP). The reporter is the patient.  A 28-year-old female patient received bnt162b2 (BNT162B2), intramuscular, administered in arm right, administration date 18Jun2021 12:00 (Lot number: EW0191) at the age of 28 years as dose 2, single for covid-19 immunisation. Relevant medical history included Migraine (unspecified if ongoing), note She occasionally gets migraines allergic to cats (unspecified if ongoing), mildly allergic to berries (unspecified if ongoing), notes Verbatim mildly allergic to berries, allergic to penicillin (unspecified if ongoing), notes Verbatim allergic to penicillin. Concomitant medication(s) included VIT D [COLECALCIFEROL] taken for pregnancy (ongoing). Vaccination history included: Bnt162b2 (Route of administration: intramuscular, Anatomical site: right upper arm, LOT: EW0191, Expiration: 30Sep2021, Time the Vaccination Was Given: around 10 am), administration date: 28May2021, when the patient was 28 years old, for COVID-19 immunization.  The following information was reported: RETINAL EXUDATES (medically significant) with onset Oct2021, outcome unknown, described as diagnosed multiple evanescent white dot syndrome, BLINDNESS (medically significant), outcome unknown, described as sudden blindness, OFF LABEL USE (non-serious), PRODUCT USE ISSUE (non-serious) all with onset 18Jun2021 12:00, outcome unknown and all described as "She got the vaccine when her daughter was 2 weeks old"; VISUAL IMPAIRMENT (non-serious) with onset 08Oct2021, outcome, recovered (Dec2021), described as partially blind in one eye, MASTITIS (non-serious) with onset Jun2021, outcome unknown, described as Mastitis/recurring subclinical mastitis, INFLAMMATION (non-serious), outcome unknown, described as lots of inflammation in her chest/inflammatory build-up of some kind/inflammation with breastfeeding, BLISTER (non-serious), outcome unknown, described as lots blebs, which are thickened milk at the base of the nipple, BREAST MASS (non-serious), outcome unknown, described as they saw a mass because of the clogged duct/then a mammogram, there was a mass seen, HEADACHE (non-serious), outcome unknown, described as she had some headaches because her vision was imbalanced, INFLUENZA (non-serious), outcome unknown, described as flu symptoms, PAIN (non-serious), outcome unknown, described as body aches, BREAST CYST (non-serious), outcome unknown, described as lactation related cyst, MIGRAINE (non-serious), outcome unknown, described as She occasionally gets migraines, FEELING HOT (non-serious), outcome unknown, described as visible clogged duct that was red, inflamed and hot to the touch. The events sudden blindness and partially blind in one eye were evaluated at the physician office visit.  Patient started concomitant Products prenatal vitamin started before pregnancy needed 6400 IUs while lactating. She was diagnosed multiple evanescent white dot syndrome, abbreviated as MEWDS. The condition was rare, it was a condition where there was an inflammatory build-up of some kind, she was not sure if describing correctly but they describe it like a white dot on imaging, did a fluorescein angiogram, other testing was not safe for breast feeding. She had a newborn, it was traumatic, and stressful, she was blind in one eye. She was going to through other health struggles with her daughter and herself. She was using steroid eye drop. She saw a study out of that correlated MEWDS with Pfizer COIVD Vaccine. Physician saw a mass because of the clogged duct, then they wanted to biopsy it to make sure it was not cancer. There was a large black dot in the centre of her vision, seeing flashes around the outer portion of her vision, so intermittently could not see her field of vision, the centre of vision was always dark. At night she was blind as a bat. She has no family history of eye issues. she had one previous ocular migraine before when she saw flashes in periphery that disappeared when headache went away, but this time she did not have a headache and it did not go away. Diagnosed with MEWDS a few days later, not having severe pain, she was concerned if her retina was detached. she had some headaches because her vision was imbalanced. Clarified the issues with her retina (being able to refract light) has completely resolved. The inflammatory condition, she occasionally still sees flashes, states like the Jerusalem study that was referenced. Patient did not took vaccination prior within four weeks.; Sender's Comments: Linked Report(s) : US-PFIZER INC-202200269210 maternal, infant cases