Never heard the term ICH... if the eggs were hatched in captivity, then technically they are not CH, but being from an imported gravid female. But this may be a term I have just never heard.

I have been wrong before and will be wrong again.

I would say no to her being a YB. Side, belly, flames, and pixelation... they just do not match. Not maybe not a YB, but not at all.

Once you see a few they are quite easy to pick out.

Either way she is a gorgeous snake and if you are into her, then that is all that matters.

Bruce