Gushing fluid while not excited /felt like water breaking

The other morning about 10 or 15 minutes after waking and using restroom. I had a sensation almost like I had to pee but not really and immediatly released about a cup and a half of clear fluid with absolutely no controll. It felt like my water had broken, but I am NOT pregnant. It was so remeniscent of breaking water that I had the urge to smell he liquid. It was most definitely NOT pee,in fact it even smelled a bit like ambiotic fluid! This smell was faint but was the only smell. Also there was no blood and the fluid was absolutely clear. I asked a nurse in my Dr.'s office and she was stumped. It was almost like female ejaculation, or"gushing"(I hate that word). Any thoughts?