What Causes Severe Sweating During Nights?

I woke up and felt like i had not slept all night and burped and threw up just liquid. when i layed down last night and got ready to fall asleep i broke out in a sweat all over my body and woke up with my shirt wet from it. No temp that i have caught anyways. just feel like i havent slept have no desire to eat and when i do after a few bites i feel full and i got from hott to cold.