Not eating?

Any one else not eating? Last week I was ravenous this week I'm just not hungry at all. Like ive got zero appetite. Weird thing is I feel great no sickness, lots of energy - I'm just aware that I must be running on empty. Like today it's now 8:45pm in the uk all I have had is cereal about 10am and some crisps about 5pm and that's it. Im just not hungry though, I feel bad on my poor growing baby but I just can't force feed myself if I'm not hungry 😔