primary immunisation: non-pfizer vaccine; booster: comirnaty; primary immunisation: non-pfizer vaccine; booster: comirnaty; nerve pain; pain in shoulder; tingling along arm and into fingers; pain in left arm; limited movement; disturbed sleep due to pain; this is a spontaneous report received from a contactable reporter (consumer) from the regulatory agency. regulatory number: gb-mhra-webcovid-202202231329354430-1x61y (ra). other case identifier(s): gb-mhra-adr 26640875 (ra). a 72 year-old female patient received bnt162b2 (comirnaty) (batch/lot number: unknown) as dose 3 (booster), single for covid-19 immunisation. relevant medical history included: "blood pressure" (unspecified if ongoing); "oesophageal acid reflux" (unspecified if ongoing). concomitant medication(s) included: influenza virus taken for immunisation, administration date 2021; amlodipine taken for blood pressure measurement, start date: may2015; omeprazole taken for gastrooesophageal reflux disease, start date: 2017. vaccination history included: covid-19 vaccine (dose 2; manufacturer unknown), for covid-19 immunisation; covid-19 vaccine (dose 1; manufacturer unknown), for covid-19 immunisation. the following information was reported: off label use (medically significant), interchange of vaccine products (medically significant), outcome "unknown" and all described as "primary immunisation: non-pfizer vaccine; booster: comirnaty"; neuralgia (medically significant), outcome "not recovered", described as "nerve pain"; arthralgia (medically significant), outcome "unknown", described as "pain in shoulder"; paraesthesia (medically significant), outcome "unknown", described as "tingling along arm and into fingers"; pain in extremity (medically significant), outcome "unknown", described as "pain in left arm"; hypokinesia (medically significant), outcome "unknown", described as "limited movement"; sleep disorder (medically significant), outcome "unknown", described as "disturbed sleep due to pain". the patient underwent the following laboratory tests and procedures: sars-cov-2 test: (20feb2022) no - negative covid-19 test. the patient did not have symptoms associated with covid-19 and was not enrolled in clinical trial. the patient had not been tested positive for covid-19 since having the vaccine. the report of the patient was not related to possible inflammation of the heart (myocarditis or pericarditis). no follow-up attempts are possible; information about lot/batch number cannot be obtained. no further information is expected