I have been having these symptoms all week. I have slow/blurry vision. my eyes feel slow to focus and slightly hurt. They feel better when I shut them though. I also have been experiencing slight stomach pain. I don't believe it is hunger related also. I am also feeling lots of light headedness and dizziness. If i drink a TON of water it will go away for a short time. It feels like I am always dehydrated. I drink a normal amount of water and feel dehydrated so it can't just be my water consumption. I was in Mexico and got a parasite about a month ago. I took medicine and it went away (i believe) so this could be it still staying in my system in a small way. I have am taking adderall for my ADD and was taking a workout supplement called Jack-3D but have stopped just incase that was causing this. I have been on a normal diet and do not know why this is happening to me. Please help! Thanks!