Brain zaps like when you stop cold turkey or are weaning off SSRIs; Feels like you stuck your finger in a light socket; Like pins and needles when your arm falls asleep. This runs down and out of her arm.; Couldn't see when she would move her eyes; Raised, red area in the general area of the injection site; Raised area in the general area of the injection site; began as an area about the size of her palm, but it had grown after booster dose to the size of her palm plus up to the knuckle of her hand size; COVID arm (worse); Very warm to the touch, she can feel the heat through her clothing; This spontaneous case was reported by a consumer and describes the occurrence of VACCINATION SITE REACTION (COVID arm (worse)), VACCINATION SITE WARMTH (Very warm to the touch, she can feel the heat through her clothing), ELECTRIC SHOCK SENSATION (Brain zaps like when you stop cold turkey or are weaning off SSRIs), FEELING ABNORMAL (Feels like you stuck your finger in a light socket) and PARAESTHESIA (Like pins and needles when your arm falls asleep. This runs down and out of her arm.) in a 41-year-old female patient who received mRNA-1273 (Moderna COVID-19 Vaccine) (batch no. 939904) for COVID-19 vaccination. The occurrence of additional non-serious events is detailed below.     The patient's past medical history included Hysterectomy.    On 05-Nov-2021, the patient received third dose of mRNA-1273 (Moderna COVID-19 Vaccine) (unknown route) 1 dosage form. On 05-Nov-2021, the patient experienced VACCINATION SITE REACTION (COVID arm (worse)), VACCINATION SITE WARMTH (Very warm to the touch, she can feel the heat through her clothing), VACCINATION SITE ERYTHEMA (Raised, red area in the general area of the injection site) and VACCINATION SITE SWELLING (Raised area in the general area of the injection site; began as an area about the size of her palm, but it had grown after booster dose to the size of her palm plus up to the knuckle of her hand size). On 07-Nov-2021, the patient experienced ELECTRIC SHOCK SENSATION (Brain zaps like when you stop cold turkey or are weaning off SSRIs), FEELING ABNORMAL (Feels like you stuck your finger in a light socket), PARAESTHESIA (Like pins and needles when your arm falls asleep. This runs down and out of her arm.) and VISUAL IMPAIRMENT (Couldn't see when she would move her eyes). On 07-Nov-2021, ELECTRIC SHOCK SENSATION (Brain zaps like when you stop cold turkey or are weaning off SSRIs), FEELING ABNORMAL (Feels like you stuck your finger in a light socket), PARAESTHESIA (Like pins and needles when your arm falls asleep. This runs down and out of her arm.) and VISUAL IMPAIRMENT (Couldn't see when she would move her eyes) had resolved. At the time of the report, VACCINATION SITE REACTION (COVID arm (worse)), VACCINATION SITE WARMTH (Very warm to the touch, she can feel the heat through her clothing), VACCINATION SITE ERYTHEMA (Raised, red area in the general area of the injection site) and VACCINATION SITE SWELLING (Raised area in the general area of the injection site; began as an area about the size of her palm, but it had grown after booster dose to the size of her palm plus up to the knuckle of her hand size) outcome was unknown.            Concomitant medication of the patient was not reported.  The patient received the booster dose into the muscle of her left, upper arm.  The events visual disturbance, brain zaps, feeling abnormal and pins and needles lasted for about 2-3 hours. The only way she would find relief was to lay flat with her eyes closed. It had not happened since.   Treatment information for rest of the events were not reported by the reporter.   This case was linked to MOD-2021-072928, MOD-2021-072933 (Patient Link).