Re: Could I have a blood sugar disorder?
Well, I'm not a doctor and obviously I couldn't diagnose you over the internet even if I were, but, FLGal, it sounds as if you definitely have a general anxiety disorder, and you may be developing an eating disorder as well. The fact that you've gained 40 pounds indicates that you are definitely absorbing your food, and although weight gain can CAUSE T2 diabetes, T2 diabetes doesn't usually CAUSE weight gain. The only other thing I can think of is a thyroid problem, but if your thyroid were underactive, you probably wouldn't feel hungry all the time, although an underactive thyroid could cause weight gain. On the other hand, an overactive thyroid could cause the symptoms of dizziness, sweaty, shaking and anxiety, but usually with an overactive thyroid you wouldn't gain weight.
So first thing to do would be make an appointment with your general practioner. You might want to keep a diary between now and your appointment of how you feel and when, what you eat, etc. They'll probably do a complete blood count and a blood chemistry profile, which can rule in or out all sorts of things, thyroid problems among them.
If it's an anxiety disorder, a GP may be able to treat it, but you might have better luck with a therapist. There are many psychologists and psychiatrists who treat both, and my recommendation would be to try to find a good therapist in your area.