frightened

I honestly don't know what is going on. I have a head ache and my body is achy....When it first happened I was with my boyfriend and I told him it could just be wet. For the past two days my vagina has been leaking a watery substance. I haven't ever seen it like this before. It's not pee cause pee had a color and a smell to it. It's not discharge cause is a different texture. Today I woke up and I had a wet stain on my underwear. I didn't know anything came out til this morning. The substance had dried up while I was sleeping (didn't feel anything come out). When I woke up to use the bathroom it happened again and that's when I seen all of it on my underwear. I made a appointment for Friday but I still want to figure out what is going on.