My gums otherwise appear to be Okay. They do not bleed on brushing or eating solid hard substances. But when I get up in the morning, I find saliva type fluid is collected in my mouth, which appear to be slightly pale in colour. I suspect it to be some type of discharge from my gums. I have got myself checked from PGI Chandigarh. They say my gums are healthy. Please suggest me appropriate lab tests to diagnose the problem. I shall be highly obliged.