DMX Comments On ATV Crash Injuries

TMZ spoke with X ... who says he was released from a South Carolina hospital Sunday night ... one day after flipping his 4-wheeler while riding down a hill.

X says he's still in a lot of pain ... "My head still hurts bad from my concussion and I am having really bad headaches."

X suffered multiple lacerations in the wreck -- and required 3 stitches to close a gash on the top of his head.