hospitalization; neurologist noted it might be complex migraine; tired; nauseated; chills; very tired just like not wanting to move; headache; threw up; no appetite; tingling in both hands; forearms with tightness; feet tingling; knees were locked; hands were cramped up; tingles came up to the stomach area; not strong enough to be full spasm; could not move the body; migraine headache; had feelings in arms and legs after 2 hours; Call 911, could be a stroke; had the headache; itchiness was noticeable; itchy, red, hot to the touch, hard at the injectiion site; itchy, red, hot to the touch, hard at the injectiion site; itchy, red, hot to the touch, hard at the injectiion site; This spontaneous case was reported by a consumer (subsequently medically confirmed) and describes the occurrence of HOSPITALISATION (hospitalization) and CEREBROVASCULAR ACCIDENT (Call 911, could be a stroke) in a 45-year-old female patient who received mRNA-1273 (Moderna COVID-19 Vaccine) (batch no. 007C21A) for COVID-19 vaccination. The occurrence of additional non-serious events is detailed below.     Concomitant products included VITAMIN D NOS for an unknown indication.    On 24-Apr-2021, the patient received first dose of mRNA-1273 (Moderna COVID-19 Vaccine) (Intramuscular) 1 dosage form. On 03-May-2021, the patient experienced PRURITUS (itchiness was noticeable), VACCINATION SITE INDURATION (itchy, red, hot to the touch, hard at the injectiion site), VACCINATION SITE ERYTHEMA (itchy, red, hot to the touch, hard at the injectiion site) and VACCINATION SITE PRURITUS (itchy, red, hot to the touch, hard at the injectiion site). On 06-May-2021, the patient experienced HOSPITALISATION (hospitalization) (seriousness criterion hospitalization), CEREBROVASCULAR ACCIDENT (Call 911, could be a stroke) (seriousness criterion medically significant), DECREASED APPETITE (no appetite), PARAESTHESIA (tingling in both hands), LIMB DISCOMFORT (forearms with tightness), PARAESTHESIA (feet tingling), JOINT LOCK (knees were locked), MUSCLE SPASMS (hands were cramped up), ABDOMINAL DISCOMFORT (tingles came up to the stomach area), MUSCLE SPASMS (not strong enough to be full spasm), GAIT INABILITY (could not move the body), MIGRAINE (migraine headache), LIMB DISCOMFORT (had feelings in arms and legs after 2 hours), FATIGUE (tired), NAUSEA (nauseated), CHILLS (chills), FATIGUE (very tired just like not wanting to move), HEADACHE (headache), VOMITING (threw up) and HEADACHE (had the headache). On 07-May-2021, the patient experienced MIGRAINE (neurologist noted it might be complex migraine). The patient was hospitalized from 06-May-2021 to 08-May-2021 due to HOSPITALISATION. On 08-May-2021, HOSPITALISATION (hospitalization) had resolved. On 10-May-2021, HEADACHE (had the headache) outcome was unknown. At the time of the report, CEREBROVASCULAR ACCIDENT (Call 911, could be a stroke), PRURITUS (itchiness was noticeable), DECREASED APPETITE (no appetite), PARAESTHESIA (tingling in both hands), LIMB DISCOMFORT (forearms with tightness), PARAESTHESIA (feet tingling), JOINT LOCK (knees were locked), MUSCLE SPASMS (hands were cramped up), ABDOMINAL DISCOMFORT (tingles came up to the stomach area), MUSCLE SPASMS (not strong enough to be full spasm), GAIT INABILITY (could not move the body), MIGRAINE (migraine headache), LIMB DISCOMFORT (had feelings in arms and legs after 2 hours), MIGRAINE (neurologist noted it might be complex migraine), FATIGUE (tired), VACCINATION SITE INDURATION (itchy, red, hot to the touch, hard at the injectiion site), VACCINATION SITE ERYTHEMA (itchy, red, hot to the touch, hard at the injectiion site), NAUSEA (nauseated), CHILLS (chills), FATIGUE (very tired just like not wanting to move), HEADACHE (headache), VOMITING (threw up) and VACCINATION SITE PRURITUS (itchy, red, hot to the touch, hard at the injectiion site) outcome was unknown.      DIAGNOSTIC RESULTS (normal ranges are provided in parenthesis if available): On 06-May-2021, Pyrexia: 97.4f °F (High) 97.4F.     The action taken with mRNA-1273 (Moderna COVID-19 Vaccine) (Intramuscular) was unknown.       Treatment: Zyrtec, B-12 tablets. Patient was informed about low vitamin D level.  Company comment: Based on the current available information and temporal association between the use of the product and the start date of the event, a causal relationship cannot be excluded.   Reporter did not allow further contact; Sender's Comments: Based on the current available information and temporal association between the use of the product and the start date of the event, a causal relationship cannot be excluded.