No appetite can hardly eat

Alright guys im 5 dpo which is really early I know so don’t hound me. But everything I eat tastes gross and I’ll take a couple bites of it then not want it anymore. Also I really don’t have an appetite so I just go with what everyone else is eating. Last night I started having really bad hot flashes and it’s cold where I live rn. My skin felt cool body internally I felt HOT. I just wanted to go out and stand in the cold to cool off. Now I’m having really bad diarrhea for the past couple of days. Any suggestions or ideas?