Girls, hello I've been having trouble sleeping for two days now, I can…

Girls, hello I've been having trouble sleeping for two days now, I can't sleep normally at night It's so hot, my whole body is itching terribly, the pillow is bothering me, I take it off - my back hurts, it's uncomfortable, and it's also uncomfortable with him, I can't find a normal position for sleep What could this be from? I just put the term of pregnancy I don't know if I'm pregnant or not yet 28 day menstruation start date Tell me what this could be and why?