Keeping a close journal of amount and type of carbs I eat I find for me bread and pasta are absolutely killers for me. And strangely enough, Sugar Free mints are about the same. My own insulin just wont cover these well at all.
Other things such as peas, corn, potatoes, all in moderation of course I peak to around 140 and come back to 95-100.
Whats your trigger food out there?