Ninja,
I too cried as I read your post. It brought back some horrible memories for myself and my heart aches for you and your husband. My first husband had a stroke when he was 36. It was hard to diagnose, due to the fact that it was brought on my sleep apnea... thus lack of oxygen to the brain. I stayed in the hospital with him for 12 days and then brought home a grown man who couldn't even remember how to shave, brush his teeth, or turn the shower on. He would try to talk and sometimes only make grunting noises. It was hard for him to speak "real" words. He always knew what he wanted to say, but it just wouldn't come out. As for memory? He didn't even know who our four sons were. He suffered a second stroke a year later at the age of 37.
If your husband has sleep apnea.... ask your doc if it's possible he suffered a stroke. And if your doc cannot diagnose your husband's problem, find another doctor. Somebody somewhere can help you. Don't give up hope. I'll be praying for you and your husband.