HOT horse

Im a little concerned. Lately, my horse has felt hot-like, hot to the touch. The other horses are warm, yes and a lot of it is probably just natural body heat, but she's WAY worse than the other horses. I can't even describe it, but she is just...hot! You can feel the heat radiating off of her. And its all over too, mostly in her shoulders, neck and chest, but not focused to any one spot. Is this normal? She seems to be ok otherwise..her eyes arent glassy or dull or anything-her eyelids are droopy, but that's not exactly unusual-shes usually pretty chillaxed. The weather hasnt been abnormally hot lately either; actually quite cool. I don't know what to think.

Have you taken her temp?

Yeah, take her temp and if it's over 102*F call a vet

Definitely take her temp first of all.
Heat coming from a localised area - as you said, her shoulders/neck/chest - can also be an indication of some muscle damage. It's possible she may have pulled/torn muscles, which won't always come up as lameness.

One problem: we don't have a thermometer =/ I'll ask my instructor about it at lessons in a two days...i don't think two days will be that big a deal, right?

Just like just about everything with horses. It could be nothing...or it could be real trouble.

She could be hot because of a fever. In which case, she may or may not need a vets attention. It could be that before you got there she was running around and got herself worked up and hot. Heck, she could have been sunbathing. Or...it could be a sign of a deeper problem like infection or virus. Thermometers are cheap and usually pretty accesable. They sell them at just about every feed store around and for a digital one, they are about 15 bucks (high end). If you own a horse, you should own a thermometer.

I've noticed my new foal seems so hot to the touch compared to his mother. But his mom is a gray (almost white) and he's a bay, so I think he just soaks up the sun more than his mom. I felt him the other day and he was almost too hot to leave my hand on! Sorry if this sounds dumb, but is she a darker color that the other horses?

shes the same colour as her fieldmate, so no, she's not darker

Noone here can diagnose without any real info other than "she feels hot". That is like someone saying "I feel sick" as they go to the Mds office. At least the person can answer questions as to where, what, when. Etc. Your horse cannot. Get a thermometer-pretty simple, really, take her temp, and make SOME attempt rather than sitting there just asking people to guess. Be a bit of a detective an observe as much as you can. The more info the better. Info and observations are good.. They give people and vets an idea of where to start.