I don't like going to the doctor either, and I know there are "checkup" I should have that are way long, like years overdue. At the same time, as long as I'm functioning okay physically, I resist going in for probing, etc!
About dreams...I often don't remember them, but then when I'm drifting off into light sleep, the dreams will give flits of recurrence. I recognize them and will try to recover the theme of them.
I realize this probably doesn't help you.
Regarding sleep...do you indulge in any foods/drinks that are laden with stimulants, like coffee, cola, etc? I have learned that these things will keep me awake sometimes all night.
I have also observed that if I participate in some rigorous exercise ...really anytime during the day...my sleep is better. I admit, I often neglect to do this, but when I do, I sleep much better.