Help me please ..

Gemma
Hi ladies .. 
I've been getting body aches lately, and for the past week and a half I've eaten so much more than what I usually eat I'm almost hungry an hour after I have eaten a good meal. I've been tired but for some strange reason I can't sleep only when I'm in bed with my partner at night . . 
I don't know what is wrong with me at the moment .. My partner thinks because of us going to the gym the last month my bodies just changing .. I'm not sure on his opinion though.. Any thoughts ?