Dizzy and Disoriented: Diabetes Symptoms?

Has anyone else recently experienced this with diabetes? I almost feel like my head is in a bubble and I feel dizzy for hours at a time. It feels similar to a cannabis high, but without the fun parts. I don't know if my sugar is high. I assume it is (we just moved and I haven't been able to locate my glucosemeter), and so I avoid anything with large amounts when I feel that way, but I don't know how to make it stop aside from just letting it wear off. This time around, I've felt like this for two days. I don't know if my gastroparesis is prolonging it or what is going on.