Immediately upon injection i felt a burning/stinging sensation across my arm (much like actually being stung by an insect) which abated within 5-7 minutes; Immediately upon injection i felt a burning/stinging sensation across my arm (much like actually being stung by an insect) which abated within 5-7 minutes; severe aching began which lasted for 48 hours; two nights of cold sweats; intermittent fatigue with 3 dizzy episodes; intermittent fatigue with 3 dizzy episodes; mainly residual neck/arm pain &  loss of  range of motion, soreness and constant aching in the right shoulder (although diminished).; mainly residual neck/arm pain &  loss of  range of motion, soreness and constant aching in the right shoulder (although diminished).; mainly residual neck/arm pain &  loss of  range of motion, soreness and constant aching in the right shoulder (although diminished).; mainly residual neck/arm pain &  loss of  range of motion, soreness and constant aching in the right shoulder (although diminished).; slight swelling at injection site; This is a spontaneous report from a non-contactable consumer (patient). An adult patient of an unspecified gender and age received bnt162b2 (PFIZER-BIONTECH COVID-19 mRNA VACCINE, Formulation: Solution for injection, Lot number EW0161), via an unspecified route of administration, administered in arm right on an unspecified date as DOSE 1, SINGLE for covid-19 immunisation in hospital. The patient medical history was not reported. No other vaccine in four weeks. Concomitant medication included atorvastatin calcium (LIPITOR) taken for an unspecified indication, start and stop date were not reported; ethinylestradiol, etynodiol diacetate (ZOVIA) taken for an unspecified indication, start and stop date and vitamin were not reported received within two weeks of vaccination. The patient previously took ciprofloxacin, bactrim, protonix [omeprazole], levsin had allergy. On an unspecified date the patient experienced immediately upon injection patient felt a burning/stinging sensation across my arm (much like actually being stung by an insect) which abated within 5-7 minutes. Then severe aching began which lasted for 48 hours, but reached it's peak during 3-12 hours after injection before beginning to dissipate. It radiated up to just underneath my ear, down the side of my neck, through my shoulder, down my arm and along the side of my hand affecting my ring and pinky fingers. Advil worked well initially, but the pain continues. Also, during the first week after the first injection patient experienced two nights of cold sweats without fever followed by a week of intermittent fatigue with 3 dizzy episodes but mainly residual neck/arm pain and loss of range of motion, soreness and constant aching in the right shoulder (although diminished). Note: slight swelling at injection site. (The administration of my second dose in left arm was NOT painful & I incurred no side effects.) Patient think needle placement is paramount. No covid prior vaccination, and no covid tested post vaccination. Therapeutic measures were taken as a result of immediately upon injection i felt a burning/stinging sensation across my arm (much like actually being stung by an insect) which abated within 5-7 minutes (pain), severe aching began which lasted for 48 hours (pain) with Advil. The outcome of immediately upon injection i felt a burning/stinging sensation across my arm (much like actually being stung by an insect) which abated within 5-7 minutes was recovering. The outcome of the other events was not resolved.  No follow-up attempts are possible. No further information is expected.