Always have some candy to counteract the shakes. I don’t mean a lot; one lemon drop should make a difference. It seems contradictory for a DB, but it works.

When ever you feel that way, it is because your body has released too much insulin. Did you eat especially, overeat, or eat something not allowed, a few hours before this incident. Or if you take insulin you took too much. Right away drink a glass of orange juice, or eat something sweet, a piece of candy, a jelly sandwich, whatever is handy. Orange Juice is is best because it gets into your system quickly. And get to your doctor or a dietician who can explain diabetes to you. I am a diabetic also.

Go to a new endocrinologist for the best care.
You need to learn to count carbs. It is the gold standard in diabetes care.
I will leave the education up to your doctor and your dietitian.
When you called your doctor last night due to these symptoms, what did he/she say ?
Ever take a diabetes class ?
Subscribe to diabetes magazines?
Give it a try.