Tell me why my sugars are back up after 3 yrs?

Contrary to what many people say, weight loss surgery is not a cure for diabetes. No matter what surgery you have, if your pancreas doesn't make enough insulin, you will be diabetic. It is not necessarily something you are doing wrong. Sometimes, when a person is diabetic for many years, the beta cells get worn out and the pancreas just can't make enough insulin for the body. I'm  sure your weight gain didn't help. Losing it might make things improve/
I wish you the best.

Karen

Yes, it could be simply the weight gain, or that combined with aging and the body adapting. The 7.4 A1C isn't that horrible yet, so you have a good chance of getting it back under control, and strict carb control may be enough to make that happen. Best of luck -

I agree with the other posts.  WLS does not cure diabetes.  It may relieve the higher numbers, but the diabetes will always be with you.  Research shows that by the time many people are initially diagnosed with diabetes, our beta cells are already 80% gone.  That means, you are firing on only 20% of the pancreas for the rest of your life.  This means that you preserved much of your pancreas when you had the Weight Loss Surgery, but what is already lost is still lost, nothing known to date will bring it back (and which is why I hope and pray for cloning to become a reality.)

How is your blood pressure?  You didn't mention it.   Remember that of all the reasons leading to up to kidney failure and death with diabetes, high blood pressure is 35% of fatalities, diabetes is 48%,  and cholesterol is only something like 5%.  The cholesterol is problematic as a heart indicator.  You might have your doctor run a mini or a Apolipoprotein A1 (should be between 115 to 224) and Apolipoprotein B should be between 58 to 138.  These tests are real important if you take medication for your cholesterol levels.  Remember, you LDL needs to be less than 100, your HDL above 60, and Triglycerides less than 150 with a total cholesterol less than 200.  Of course, some of these numbers should be adjusted for your sex. 

Also, go back and look at your food diary and give it a close review to be sure that you have not been sneaking in extra calories somewhere.  You body does adjust, but not a weight swing like that.  I'd take that up with my doctor.