TMI FOR SOME. Recently I've been noticing a clear liquid during my period. It completely soaks my tampons and underwear. At first I thought it was urine because it has a slight smell to it. Of course I know I didn't pee of myself, but I thought maybe it was just a one time thing. Now I'm noticing it with every period. I looked it up on google, and a lot of women deal with it.. However doctors have no idea what it is. Has anyone experienced this or know what it is?