Whats going on with me?!?!

Jessica • 23yrs old beautiful 5yr old girl been with fiancé a few yrs been trying for 18mnths not of treatment to help.
Been having nightmares and hot flashes I cannot sleep been eating crazily and very nauseous. Haven't been able to get pregnant in 3yrs and now all this craziness happening. I am also passing a bright green/teal looking stool what's going on?