Tony
You will be relieved to know that you are not the only one. My partner has been through numerous sleep tests after falling asleep all the time (very dangerous considering he was a learner driver instructor). Eventually they ruled out sleep apnoea and narcolepsy and, like you said, the doctors just dropped it when it wasn't one of those. Now, 6 months later, we finally find out from a naturopath (although his doctor disputes it but he didn't do the T3 & T4 test) that his thyroid is very low. It is interesting that this could be the cause of the sleep problems.

I believe that Tyrosine & Iodine can help improve your thyroid and that is what we are trying at the moment.

Good luck Tony

Melberry