I have not been able to eat. I won't get hungry until like 3 in the afternoon and when I force…

I have not been able to eat. I won't get hungry until like 3 in the afternoon and when I force myself to eat before then it just doesn't work. I feel bad too because I keep dozing off on my 3 year old.....I cant sleep at night but can go to sleep easily during the day smh This is scaring me.....the not being able to eat. suggestions??