I ate pizza last night (bad, but oh well. back on track now.)
The thing is, i feel really depressed today! The bad, bottom of the gut kind of depression that feels quite physical.
I include carby meals every once in a while, and haven't experienced this before.
Does anyone think too much of the wrong kind of carbohydrate can cause an immediate emotional response like this?

If i eat white flour or sugary things other than fruit, I spiral down into deep deppression for often up to a week after.

Yes, it can happen. How much pizza did you eat? One slice or perhaps a bit more? Pizza is incredibly high in sugar and one of the tougher foods for your body to metabolize. That kind of spike can indeed cause you to crash -- although part of your depression is likely guilt because you felt you were doing really well. Kick up the B vitamins, and that should help!
d.

The best thing you can do is to let it go and move on.
Good luck!!!

Drink plenty of H2O, cut yourself some slack and remember this the next time around. You sure don't want to feel like this again!

Sometimes after a high carb meal I will feel very bloated the next day and tired, no energy to do anything. And than I usually also feel very guilty and come down hard on myself.

Chin up today is a new day. You will feel better as the day goes on.

Good luck