Type 2 Diabetes Worsening After Total Colectomy: Seeking Advice

i had a total Colectomy last December. If you dont know what that is it is a total removal of large colon and rectum due to crohn's disease. before that I was taking 20 units of lantus and 1,000 mg metformin 2/day. my A1C was 6.1 and we were discussing getting off insulin. after the surgery my A1C has been as high as 9.0 and i am currently now taking Lantus 2/day at 40units and on novolog 3/day at 20 units. my numbers are consistently around 250. i have even started exercising daily and watching my carb count (30/day). still nothing is better. i am wondering if anyone else has had such changes after this type of surgery? my endo hasn't found a reason why, but i dont want to keep raising my medicine. i feel like i'm just not absorbing it normally anymore.please reply back if you have any advice. im desperate. thank you for your time. God Bless --- mia

I had to resort to insulin injections as drug absorbton was compromised