I'm not sure who to ask about this, but for the past couple of years, my mouth started getting occasionally dry (especially when I sleep) and I'm having problem with my breath (especially after I eat or drink certain things) When I use things like Lysterine, it just seems to dry my mouth out MORE and make it worse ... what could cause this? Is there anything I can do? I hate having problems with my breath, and keeping mints around all the time is difficult. I brush twice a day, and use rinses occasionally. Any advice?