left arm is hurting/sore arm and is sore; under arm pit is hurting on left side; body aches; Headache; Chills; This is a spontaneous report received from a contactable reporter(s) (Consumer or other non HCP). The reporter is the patient. Other Case identifier(s): US-PFIZER INC-202101650134 (Pfizer).  A 34 year-old female patient received bnt162b2 (BNT162B2), administered in arm left, administration date 22Nov2021 (Lot number: FE3592) at the age of 34 years as dose 3 (booster) , single for covid-19 immunisation. The patient's relevant medical history and concomitant medications were not reported. Vaccination history included: Bnt162b2 (DOSE 1, SINGLE, 05Mar2021, LOT: EN6199), administration date: 05Mar2021, when the patient was 34 years old, for Covid-19 immunization; Bnt162b2 (DOSE 2, SINGLE, 20Mar2021, LOT: EP6955), administration date: 20Mar2021, when the patient was 34 years old, for Covid-19 immunization. The following information was reported: PAIN IN EXTREMITY (non-serious) with onset 23Nov2021, outcome "unknown", described as "left arm is hurting/sore arm and is sore"; AXILLARY PAIN (non-serious) with onset 23Nov2021, outcome "unknown", described as "under arm pit is hurting on left side"; PAIN (non-serious) with onset 23Nov2021, outcome "unknown", described as "body aches"; HEADACHE (non-serious) with onset 23Nov2021, outcome "unknown", described as "Headache"; CHILLS (non-serious) with onset 23Nov2021, outcome "unknown", described as "Chills". Therapeutic measures were taken as a result of pain in extremity, axillary pain, pain.  Additional information: The patient calling about the Pfizer COVID-19 vaccine booster dose to report one of her side effects after getting her shot yesterday morning. She says she is experiencing her arm hurting and her under arm is hurting. She says when she got her first two doses she had no symptoms, and now with the booster she is experiencing symptoms. She says she has a sore arm and is sore and tender under her arm pit, it hurts. She says she also has body aches, headache, and chills, but she doesn't know if she has a fever since she hasn't taken her temperature, though she does feel a little warm. She says she doesn't have a primary care provider. The patient says her arm pit on her left side and her arm and under pit really close to her breast hurt. She says she didn't have this with the first two doses. She says she got the vaccine for protection, to prevent the virus. She has only taken over the course of 4 hours each time, 500mL, clarified to 500mg Tylenol. She says she took it the first time at 03:00AM, then sometime today took another 500mg Tylenol. She says she has also massaged her breast since she heard about lymph nodes, that this could help. She says after the first two doses there were no issues this, only this one. She says after the first two she was completely fine. She says she got her shot yesterday, then started feeling horrible at 03:00AM today, started feeling the symptoms. She says they have been the same, and if she had to rate it, the pain is a 5 on a 1-10 scale. Patient clarifies that she took 500mg, one tablet of Extra Strength Pain Relief Acetaminophen, the generic from Heb, the grocery store. She says she has got to go get her glasses now, which she does need to wear glasses if print is super tiny, this happened more recently, for a month and a half now, but she has not done a whole lot of reading right now. Extra Strength Pain Relief Acetaminophen UPC: The patient says this is not on the bottle label, it may have been on an outer box or wrapper. She provides LOT: P144101, and EXP: Jun2023. She says this bottle was sealed and intact when she got it. She says she is someone who hardly ever gets sick, she doesn't take any medications. She says her son  has had a cold twice through all this, and her husband gets sick, but she never gets sick. they are always on her. Product strength and count size dispensed: 500mg.  No follow-up attempts are possible. No further information is expected.