Hi, I am 57 year old, do not smoke, do not drink. For a few months, I notice that my early morning spit is dark reddish, a couple of times. Then there is no recurrence throughout the day but again in the next day morning. I suffer from accute snorring for many years. My entire mouth and the tongue are very dry while i wake up from bed. Then it becomes normal. My mother had stomach cancer and undergone a permanent colostomy. Please advise.