the flu-like; weak arm; had a "weird sensation" after eating; feel like starving; her cycle is a week late; chest pain; panic attack; This is a spontaneous report received from a contactable reporter(s) (Consumer or other non HCP) from medical information team. The reporter is the parent.  A 21 year-old female patient received bnt162b2 (BNT162B2), administration date 11Sep2021 (Batch/Lot number: unknown) at the age of 21 years as dose 1, single for covid-19 immunisation. Relevant medical history included: "seasonal asthma" (unspecified if ongoing); "food allergies" (unspecified if ongoing), notes: apple allergies; "nut allergies" (unspecified if ongoing). The patient's concomitant medications were not reported. The following information was reported: INFLUENZA LIKE ILLNESS (non-serious), outcome "unknown", described as "the flu-like"; MUSCULAR WEAKNESS (non-serious), outcome "unknown", described as "weak arm"; FEELING ABNORMAL (non-serious), outcome "unknown", described as "had a "weird sensation" after eating"; HUNGER (non-serious), outcome "unknown", described as "feel like starving"; CHEST PAIN (non-serious) with onset 11Sep2021, outcome "recovered" (2021), described as "chest pain"; PANIC ATTACK (non-serious) with onset 11Sep2021, outcome "recovered" (2021), described as "panic attack"; MENSTRUATION DELAYED (non-serious), outcome "unknown", described as "her cycle is a week late". Therapeutic measures were taken as a result of influenza like illness, muscular weakness.  Additional Information: Caller was a consumer calling behalf of her daughter (21y/o female) who received her first dose of the Pfizer-Biontech Covid19 vaccine (Comirnaty) on 11Sep2021.  She reports that afterward she experienced the normal stuff the flu-like, weak arm, that kind of stuff which she had and she took Motrin or Tylenol, whatever they told her.  The patient also had a weird sensation in her stomach after eating stating she eats, but then she'd feel like starving after finishing her meal but caller states this may be due to taking the OTC pain medications on an empty stomach/a stomach that's not full enough.  Her 2 concerns are: after she got the vaccine she started to feel like she was having chest pain it felt like someone was pushing on my sternum and letting go. a weird sensation and it was almost like that feeling of having a panic attack.  The chest symptoms happened almost immediately following administration saying she felt them by the time we got to the car and that the subsided by day 3 but they it had changed a little, it went from like really freaking her out at first. buy by day 3 it was totally gone.  The caller's second concern is, she's not sexually active, but her cycle, she's typically on time, but her cycle is a week late. Caller notes her daughter also has seasonal asthma, food allergies, apple allergies, nut allergies; and they've already scheduled follow-up with her physician. She does have seasonal asthma (Intent history) and food allergies (Intent: history) and the mom has been on the phone with Pfizer before so there might be a duplicate case (Transferring agent was unsure, hence checked as initial report). You know what, she just went back to her queue and it looks like the caller has disconnected so she was very sorry but she will file it from her end as well. Agency: E-transmit, possible duplicate. Attempted transfer to agency but caller remotely disconnected, PRIVACY Reportum PRIVACY. Of note, caller had already been on the phone with Pfizer, possibly agency, for 30 minutes and was not directly routed to MI. Per FAQ: What information is available regarding menstrual changes? Response: Provided information from Cons doc regarding reports of myocarditis and pericarditis, no information on onset compared to time of administration.  Spoke from FAQ below regarding changes in menstruation.  Caller asked if she should be concerned about menstrual cycle changes, referred caller back to HCP for guidance. Per FAQ-: The Comirnaty Prescribing Information and the authorized EUA Prescribing Information for the Pfizer-BioNTech COVID-19 Vaccine do not list menstrual changes as adverse reaction from clinical studies and post authorization experience. Society of Pediatric and Adolescent Gynecology is an organization that provides leadership in education, research and gynecologic care to improve the reproductive health of young people. Organization states that:[1] There have been anecdotal and media reports of irregular menstrual cycles, including skipped periods, prolonged periods, spotting after COVID-19 vaccines in adults and similar changes in menstrual cycles have been reported after COVID-19 infection. This is not surprising because infections, immune reactions, and fevers can cause short-term, self-limited changes in cycles. However, further studies are needed to verify these changes in people who have received COVID-19 vaccines. Caller remotely disconnected before warm transfer to safety could be made. Unable to offer survey. Product details (LOT#, NDC#, UPC#, expiration date) could not be probed as the consumer hung up abruptly before warm transfer in Pfizer Drug Safety. Hence, limited information was available over the call. QR comment: Reporter type was not available over the call, hence reporter type was captured as consumer or non-healthcare professional by default.  No follow-up attempts are possible; information about lot/batch number cannot be obtained. No further information is expected.