Every day I check my underwear for cervical mucus. If it is watery, I can't tell the difference between mucus and urine. If it is gelatinous and clear, it could be sinus-related; I have a history of post-nasal drip and sinus infections. If it is dry, sticky, or creamy, I suspect that I am dehydrated--I don't drink nearly enough water. A history of anxiety and depression has left my mucous membranes very very dry (chronically dry eyes and nose, very little vaginal moisture).
How do I tell the difference between these health related issues and my reproductive cycle?