I suddeny faint and fall down +get fully wet with sweat and have a tummy pain along and darkness infront of eyes+cant remeber anything when i feel dat?

Seek urgent help: It sounds like you passed out - a so called syncopal event. Based on your limited history it's unclear what caused this, it could be as benign as a so called vasovagal response(related to abnormal activity of your nervous system) but also could be related to a more concerning heart or brain problem. Please avoid waiting too long to seek help.