never had what you discribe,but just get yourself down to the doctors sharpish mate. You should never ignore what your body is telling you,and and judging by you posting here....your gut feeling has told you thats its something you shouldn't ignore. Hey you might have tests and they say its tirdness or lack of something...but its best to put your mind at rest,because worrying can do alot of damage as well....you have to think of your family. Good luck mate,i hope its nothing....i recently had a few health issues that scared me,but turned out to be nothing....so i kinda know where you are coming from.