intense continuous pain in my upper back/pain with each deep breath; constantly in pain and weak/ lost range of motion in my left arm; constantly in pain and weak/ lost range of motion in my left arm; lymph nodes under my left arm are still swollen; Sleeping is fitful; arm started to feel very sore; This is a spontaneous report received from contactable reporter(s) (Consumer or other non HCP). The reporter is the patient.  A 56 year-old female patient (not pregnant) received bnt162b2 (BNT162B2), administered in arm left, administration date 22Dec2021 16:15 (Lot number: FL3197) at the age of 56 years as dose 3 (booster), single for covid-19 immunisation. The patient had no relevant medical history. There were no concomitant medications. Vaccination history included: Bnt162b2 (Dose Number: 2, Batch/Lot No: EW0180, Location of injection: Arm Left, Vaccine Administration Time: 03:00 PM), administration date: 02Jun2021, when the patient was 55 years old, for Covid-19 Immunization; Bnt162b2 (Dose Number: 1, Batch/Lot No: EW0182, Location of injection: Arm Left, Vaccine Administration Time: 04:30 PM), administration date: 12May2021, when the patient was 55 years old, for Covid-19 Immunization. The following information was reported: PAIN IN EXTREMITY (non-serious) with onset 22Dec2021 21:30, outcome "not recovered", described as "arm started to feel very sore"; BACK PAIN (non-serious) with onset 23Dec2021, outcome "recovered" (Dec2021), described as "intense continuous pain in my upper back/pain with each deep breath"; MUSCULAR WEAKNESS (non-serious), JOINT RANGE OF MOTION DECREASED (non-serious) all with onset 22Dec2021 21:30, outcome "not recovered" and all described as "constantly in pain and weak/ lost range of motion in my left arm"; LYMPHADENOPATHY (non-serious) with onset 22Dec2021 21:30, outcome "not recovered", described as "lymph nodes under my left arm are still swollen"; INSOMNIA (non-serious) with onset 22Dec2021 21:30, outcome "not recovered", described as "Sleeping is fitful". The events "arm started to feel very sore", "constantly in pain and weak/ lost range of motion in my left arm", "constantly in pain and weak/ lost range of motion in my left arm" and "sleeping is fitful" were evaluated at the emergency room visit. Relevant laboratory tests and procedures are available in the appropriate section. Therapeutic measures were not taken as a result of pain in extremity, muscular weakness, joint range of motion decreased, lymphadenopathy, insomnia. Therapeutic measures were taken as a result of back pain.  Additional information: The patient did not receive other vaccine in four weeks and other medications in two weeks. Facility where the most recent COVID-19 vaccine was administered was Administration facility. The patient did not receive any other vaccines within 4 weeks prior to the COVID vaccine. The patient did not received any other medications within 2 weeks of vaccination. On the evening of my booster at 9.30pm my arm started to feel very sore. Next morning around 11.30am I felt intense continuous pain in my upper back-level 9 pain. I had pain with each deep breath. I called the nurse hotline. The nurse told me to take ibuprofen. After two days of pain and ibuprofen it subsided. However the pain in my left arm has not gone away. It is constantly in pain and weak. I have lost range of motion in my left arm, a problem I have never had before. It has been three months and the pain is still constant. The lymph nodes under my left arm are still swollen. Sleeping is fitful because I can't sleep on my left side and the pain in my left arm wakes me up at night. Prior to vaccination, the patient was not diagnosed with COVID-19. Since the vaccination, the patient has not been tested for COVID-19. No known allergies.  No follow-up attempts are possible. No further information is expected.