Thank you. You guys are being so helpful.
You Could be dehydrated defiantly get checked out. And make sure you eat and drink to compensate for what youv been loosing.
Tall to your Dr, but it sounds like a vasovagal reaction which can happen when straining or "bearing down" for periods of time. If its the first time you've fainted your Dr may want to do a workup on you just to make sure everything else is good :-)
I would definitely talk to my doctor fainting doesnt sound normal and make sure you're keeping your fluid intake up. Water and Gatorade are great to keep hydration