A few diabetics I know have had a similar problem... Their usual solution was instead of having 3 normal sized meals a day they had 5-6 small meals (small enough that eating them wasn't a major effort) instead.
The other alternative is ruthlessly sticking to your food schedule and forcing yourself to cram in the food regardless of how ill it makes you feel as long as you don't hurl it all back up. The upside to this is that your body usually adapts fairly quickly and it becomes less of an issue.
The other alternative is ruthlessly sticking to your food schedule and forcing yourself to cram in the food regardless of how ill it makes you feel as long as you don't hurl it all back up. The upside to this is that your body usually adapts fairly quickly and it becomes less of an issue.