Post op complication: If he has had major surgery and is now experiencing 'blackouts' he needs to be seen.
Answered 3/16/2013
5.7k views
Vasovagal: He is probably bearing down to hard during his bm which is causing a reaction that makes him lose consciousness. Go see neurologist and cardiologist just to be on the safe side.
Answered 12/3/2013
4.7k views
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