Patient passed out and hit head on the ground; Felt horrible when she got up; Shake; Keep getting cold and had chills; Get hot; Hit head on the ground; Patient scrapped knee and knee is burning; Move was excruciating/didn't even roll over and hurt to move; Patient scrapped knee and knee is burning; Felt like she was going to throw up; Hurt real bad, body was very very sore; Keep getting cold and had chills; Joint Sore; This spontaneous case was reported by a consumer and describes the occurrence of LOSS OF CONSCIOUSNESS (Patient passed out and hit head on the ground) in a female patient of an unknown age who received mRNA-1273 (Moderna COVID-19 Vaccine) for COVID-19 vaccination. The occurrence of additional non-serious events is detailed below.     The patient's past medical history included No adverse event (No relevant medical history provided).    On an unknown date, the patient received first dose of mRNA-1273 (Moderna COVID-19 Vaccine) (unknown route) 1 dosage form. On 15-Apr-2021, the patient experienced LOSS OF CONSCIOUSNESS (Patient passed out and hit head on the ground) (seriousness criterion medically significant), FEELING ABNORMAL (Felt horrible when she got up), TREMOR (Shake), FEELING COLD (Keep getting cold and had chills), FEELING HOT (Get hot), HEAD INJURY (Hit head on the ground), BURNING SENSATION (Patient scrapped knee and knee is burning), PAIN (Move was excruciating/didn't even roll over and hurt to move), JOINT INJURY (Patient scrapped knee and knee is burning), NAUSEA (Felt like she was going to throw up), MYALGIA (Hurt real bad, body was very very sore), CHILLS (Keep getting cold and had chills) and ARTHRALGIA (Joint Sore). At the time of the report, LOSS OF CONSCIOUSNESS (Patient passed out and hit head on the ground), FEELING ABNORMAL (Felt horrible when she got up), TREMOR (Shake), FEELING COLD (Keep getting cold and had chills), FEELING HOT (Get hot), HEAD INJURY (Hit head on the ground), BURNING SENSATION (Patient scrapped knee and knee is burning), PAIN (Move was excruciating/didn't even roll over and hurt to move), JOINT INJURY (Patient scrapped knee and knee is burning), NAUSEA (Felt like she was going to throw up), MYALGIA (Hurt real bad, body was very very sore), CHILLS (Keep getting cold and had chills) and ARTHRALGIA (Joint Sore) was resolving.        The action taken with mRNA-1273 (Moderna COVID-19 Vaccine) (Unknown) was unknown.       The patient got extremely hot when using the bathroom. Felt like she was going to throw up. Patient passed out and hit head on the ground. Patient didn't remember doing this. Patient scrapped knee and knee is burning. Patient feels concerned. Happened within a 24 hour period. Starting to feel better. The concomitant medications and treatment details were not provided.  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.   This case was linked to MOD21-075794 (E2B Linked Report).; 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 MOD21-075794: