Anybody else get a headache while on creatine? This is the third time over the last two years I have used creatine and have to quit due to a pounding headache. Most times I am fine until I do my first work set and then POW. Splitting headache that last for hours. I drink a shit-ton of water and still no change. It subsides between sets, almost disappears during the set and then right afterward it is rediculous. I have noticed it only happens when I have been on creatine for a couple weeks. Any advice...I know...stop taking creatine...anything else interesting? Thank you.