I get some odd symptoms during the night. It has been going on for years but recently it's becoming more frequent. Now, it is happening at least once a week and sometimes more. I awaken feeling really unwell . . it is very hard to describe but something feels really wrong. I almost feel as though I am passing out. As I sit up I notice that my mouth is so incredibly, horribly dry. I do not sleep with my mouth open. I get up and rush into the bathroom and gulped down water straight out of the tap. All the time my heart is pounding wildly (it seems from the effort of getting up and getting into the bathroom) and I feel like I am going to pass out. I just stand there and drink and drink and drink as slowly the feeling passes. Afterwards, I still feel very weak ( but not like I may lose conciousness) and crawl back into bed. Any thoughts? Anyone else experience anything like this?