I get anxious when I am eating, for the last few days I have not struggling to eat my dinners and lunch, I can't eat at the same speed as I use to and sometimes can't eat very much...but later I manage to have something, is this normal?

I experienced this about a month ago and it all got better and I thought the problem had gone...so is this normal to not eat much through anxiety?

I have been worrying about going mad and that my manic depression could come back...and I think this has had an effect, can anybody offer any help, like ways I can feel better...I found in the past I forgot about it and it seemed to help but when I go through this phase I can't seem to get out of it...