Hmmm... first off, what kind of turns? You've got 2-count turns, 3-count turns, barrel turns, character turns, paddle turns etc. And in which direction? I find one direction easier than the other. Are you dizzy at all when not turning? If you're not learning to spot properly, that might be it, but if you are spotting correctly, you might want to get your ears checked out. I have tinnitus, which doesn't affect my balance per se, but certainly doesn't help. I also have very small tubes, and am prone to vertigo. It's just an imblance in the inner ear, and meds clear it up within a week.