Bountyhunter,
I feel your pain, Had my gluecose level checked a year ago mine was way high. I have been doing the same thing, Trying to control it with exercise and diet. Mine stays around 110. But when I first had it checked it would go from 200,300 back to 100. Same thing. I've just about had it! And it does suck! Probably will have to go on medication, Hate it!
Ivan