I dont think anything is wrong but your worrying. i think you might be actually "finding" things to worry about. forgive me if this has already been said as i didnt read many of the other replies but i think your fine.
lots of people have headaches, heartburn, constipated, and feel blah. but they shrug it off as nothing because thats what it is. i think you are overworking yourself.
~*Jill*~ Teacher, Advanced BSc in Psychology
"You can unlock any door as long as you have the right key". Mrs. Brisby, Secret of Nimh