Going the wrong way??

Helloooo,
I have been on the spit for about 6 months. I started on 5's and in a
month changed to 10's. My A1C went from 8.2 to 6.5 during this time.
Never felt better. However for the last month, nothing I do can get me
back to those readings of 120/130's. I have progressivley gone to
200/230 in my waking/fasting morning readings? I have been a good boy
on my intake. I quit sodas, use splenda,eat less, and gotten away from
as much carbs. I have gotten my weight to209 down from 244. Now that
is on a rise am now 222? I exersise daily for 45 min. 5 days a week. I
seem to be headed back where I was. Has my body just all of a sudden
rejected the monster stuff? Has anybody else had the same digression?
I take 1 glipizide along with the spit.
Thanks for listening.
Danny-boi