Do I have some kind of Worms!?!?

I've been freaking out lately about hearing about worms. I think I have them-(Oh my god!) Please only a nurse or someone read this, it's personal. I always crave sugar, constantly and I eat alot of it. I bite my nails ALOT, even after I ride my horse.I always have white stuff in my pants, like what i get when i have my period, but almost 24/7. I'm not fat, but it's almost as if my stomach sticks out because i'm bloated 24/7. I (EW) looked in my poop because I've been so weirded out lately and their werent white specks, but more like white stuff around it, I'm constipated alot. My stomach always feels weird like unsettled? I have a horse, i kiss her alot and she gets wormed, but i am at the barn all the time. Also, I kiss my snakes sometimes and my dog, and I am not sure if he is treated. Do I have worms...