breast feel swollen and tender too; breast feel swollen and tender too; swollen lymph node appeared the same day I got the shot; the pain is severe, taking over the counter pain relievers but I cannot close my arm; cannot sleep; cannot get comfortable in any position, cannot work out; booster / received 3rd dose of Pfizer vaccine; This is a spontaneous report received from a contactable reporter(s) (Consumer or other non HCP). The reporter is the patient.  A 37 year-old female patient (not pregnant) received bnt162b2 (BNT162B2), administered in arm right, administration date 03Dec2021 13:00 (Lot number: FJ1620) at the age of 37 years as dose 3 (booster), single for covid-19 immunisation. The patient had no relevant medical history. The patient took concomitant medications. Past drug history included: Bactrim, reaction(s): "Allergy". Vaccination history included: Bnt162b2 (Dose Number: 1, Batch/Lot No: ER8733, Location of injection: Arm Right, Vaccine Administration Time: 12:00 PM), administration date: 04Apr2021, when the patient was 36 years old, for COVID-19 immunization; Bnt162b2 (Dose Number: 2, Batch/Lot No: ER8735, Location of injection: Arm Right, Vaccine Administration Time: 12:00 PM), administration date: 25Apr2021, when the patient was 37 years old, for COVID-19 immunization, reaction(s): "have a very painful swollen lymph node(s) in my right arm pit.". The following information was reported: IMMUNISATION (non-serious) with onset 03Dec2021 13:00, outcome "unknown", described as "booster / received 3rd dose of Pfizer vaccine"; BREAST SWELLING (non-serious), BREAST TENDERNESS (non-serious) all with onset 03Dec2021 20:00, outcome "not recovered" and all described as "breast feel swollen and tender too"; LYMPHADENOPATHY (non-serious) with onset 03Dec2021 20:00, outcome "not recovered", described as "swollen lymph node appeared the same day I got the shot"; PAIN IN EXTREMITY (non-serious) with onset 03Dec2021 20:00, outcome "not recovered", described as "the pain is severe, taking over the counter pain relievers but I cannot close my arm"; INSOMNIA (non-serious) with onset 03Dec2021 20:00, outcome "not recovered", described as "cannot sleep"; DISCOMFORT (non-serious) with onset 03Dec2021 20:00, outcome "not recovered", described as "cannot get comfortable in any position, cannot work out". The events "breast feel swollen and tender too", "breast feel swollen and tender too", "swollen lymph node appeared the same day i got the shot", "the pain is severe, taking over the counter pain relievers but i cannot close my arm", "cannot sleep" and "cannot get comfortable in any position, cannot work out" were evaluated at the physician office visit. It was unknown if therapeutic measures were taken as a result of breast swelling, breast tenderness, lymphadenopathy, insomnia, discomfort. Therapeutic measures were taken as a result of pain in extremity.  Additional Information: Location of injection for vaccine received same date reported as not applicable. The list of any other medications the patient received within 2 weeks of vaccination included store bought vitamins and supplements. The patient did not receive any other vaccines within 4 weeks prior to the COVID vaccine. It was reported that the patient had very painful swollen lymph node(s) in her right arm pit. This happened after her 2nd dose after 24 hours of getting the shot and went away after 2 days. After the 3rd dose, "the swollen lymph node appeared the same day I got the shot". It had been 3 days and "the pain is severe, taking over the counter pain relievers but I cannot close my arm, cannot sleep, cannot get comfortable in any position, cannot work out", cannot wear a bra and breast feel swollen and tender too. The pain was constant. The patient reported that she would call her doctor if this persisted. Prior to vaccination, the patient was not diagnosed with COVID-19. Since the vaccination, the patient has not been tested for COVID-19. The device date was reported as 05Dec2021.  Follow-up attempts are completed. No further information is expected.