None of these are diabetes symptoms. Diabetes symptoms would be things like excess thirst, excess urination, excess hunger (even though one is eating), substantial weight loss despite eating, blurred vision, and blood sugar numbers high enough to cuase these symptoms (like 200 and over). I've lived most of my life with diabetes and a normal thyroid and only developed Graves' disease in December, and I can tell you that I've never experienced any of these symptoms from diabetes (except nausea and fatigue when my blood sugar and ketones are dangerously high), but I have experienced almost every one of these symptoms since developing Graves'. The only one I haven't had is vomitting, but all the rest—fatigue, nausea, headaches, feeling cold, eye soreness and irritation, itching, and stomach problems, among many others—I experienced either in the month before I was diagnosed or after I started on medication and my thyroid hormones were readjusting.
I do hope that your endocrinoloigst is able to help you get your thyroid treated in a manner which works better for you so that you feel better. From what you have said, that seems to be your main problem, and solving that may also solve the blood sugar levels that your'e concerned about.