Unfortunately, I've had to switch doc's before I even got a diagnosis. I discovered that my PCP is a flake and a liar. So I made an appointment with an endo but I can't go until May.
You could ask your doctor if it's okay to take some magnesium. It has a calming effect, and if taken before bedtime, can help you sleep better. Avoid mag oxide...it's nothing but a laxative. You want either mad citrate or mag glycinate.
Are you taking medicine for hypo? After beginning meds, my sleep quality improved. I have chronic insomnia, but when I do sleep it is much better. May is a way off. If you're not currently on meds, might ask the doc who dx'd you about starting. Good luck.