Congrats on learning how to take better care of yourself!
To answer your questions as best I can, you get a new set of numbers each time you eat or test. Eating well now will make your numbers good for the next few hours. It will delay the damage the high numbers do to your blood vessels and organs. It will preserve your pancreas' ability to handle your glycemic load without additional medications or insulin. Eating well at your next meal or snack with continue this cycle. Poor choices will lead to some high numbers and a small amount of vascular damage, organ damage, nerve damage, etc. This is cumulative. Every time we make good choices we delay the bad stuff. Every time we make poor choices we do small amounts of harm. It's kind of a balancing act. The longer you are good, the longer you get to be good.
And your two hour is supposed to be 110 or less if you are a normal. You apparently have a bit of glucose intolerance and should stay with the low glycemic carbs and fruits or balance them with fats to slow their absorption. For myself an example of this would be a banana with peanut butter. It's not always the number of carbs so much as it is the foods that you eat with them. Pasta and most breads get into the blood stream almost as fast as sugar because the starch grains are ground so finely they have very little problem being converted to glucose. Whole grains in breads or as barley and brown rice have cell membranes that have to be broken down before the body can access the starches. This makes absorption of the starches more difficult for the body. Plus, whole grains (the ones where you can see the seeds) move through the intestinal tract much more quickly which makes it more difficult for the body to grab the nutrients from them.
The higher number at two hours just means that the fats from the pizza and donut slowed down the absorption of the starches a bit and that your body finally got to them later in your GI tract. Your numbers are not outrageous, but I was taught in Diabetes classes that any time our sugar is 150 or higher two hours after a meal we are doing permanent damage to our eyes, feet, kidneys and organs. Although this is not a happy thought, we do get a chance each meal and snack to get back in the game and give it our best shot. Your good numbers that you have been getting will continue as long as you keep eating that way and your disease doesn't progress. Sometimes, no matter what we do this disease just runs wild so the longer you can keep a lid on it, the better! Keep up the good work.
~ Jeannie, Forum Moderator/Diabetes & FibromyalgiaI know God will not give me anything I can't handle. I just wish that He didn't trust me so much. ~Mother Teresa "People are like stained glass windows: They sparkle and shine when the sun's out, but when the darkness sets in, their true beauty is revealed only if there is light within."- Elizabeth Kubler-Ross