I am always drowsy especially when I work or when I attend a training, I always had a runny nose and watery eyes as well. So I always had ceterizine pills but anyway it couldn t stop my runny nose and watery eyes. Then, I thougt my bad snore is the cause too. So, I had done sleep tests and bought a CPAP machine. The CPAP machine made me feel a little better but I still get a runny nose, watery eyes and I am as drowsy as ever. I want to cure this seriously because I couldn t work so well. What should I do?