Keep track of all the medicines you are taking for your Diabetes and any other condition you have in case you ever need to know. You should carry with you information on their names, dosages, and how often you are taking them in case something happens to you when you're out, or a doctor you're visiting requests that information.
Pay attention to the feeling in your feet and hands by testing them once in a while. Go barefoot on the floor and see if you can feel the grout between the tiles. When you're in the shower, drop something and step on it so you can see how well you feel it. Do the same when holding a pencil or pen. If you feel any loss of sensation, go to your doctor and let them know!
High fructose corn syrup is found in a surprising number of food products, so you should check the ingredients on most drinks or condiments before buying them. This is labeled "glucose/fructose" in Canada.