Anyone with a weak stomach, please stop reading here.

I have been having a real problem lately. I'm loosing weight (and at 112, I really can't afford to) because I can't hold anything down in the morning.
During the day, when I'm up andaround, I can clear my sinuses fine. But, when I first get up, my alergies have clogged my sinuses so bad in my sleep (not in the nose but in the sinus cavities themselves) that when I get up, they start to drain natually. This has me blowing my nose alot and spitting up. So much so that it gags me, and I get physically sick. So much so that my bathroom and I are very familiar before I've been up a half an hour.
Because of this, I have no appitite (sp) and even the thought of food makes my stomach turn. In turn, I get sicker, more quickly.
Please, I've ended up in the hospital before, having lost too much weight, any suggestion on what to do when I first get up to stop this. (mint type teas haven't helped, only increasing the acid in my stomach and most other things I've tried, if they have odors get me sick quicker. Lemon helps some, but not enough.)