Kids,
Its extreme worry for their well being, plus the fact that you are so rarely away from them, it seperation anxiety if they are gone for a night. You can well yourself up to the worst case scenarios. I saw this myself, and as my kids got older, and wanted to spend the night with friends, I felt such guilt of depriving them of doing so. You have to at least entrust your parents, to take them maybe a couple nights a month, the kids will enjoy it, and at first you may call 6-7 times to make sure they are ok, but soon you will realize they are in good hands with your family (unless there is a reason you feel your parents may put your children in harms way), it might be uncomfortable the first few times, but then you will see you are calling less, and trusting them more, that you, yourself will find that you can relax or go out to dinner on those nights when they are having fun with Grandma and Grandpa. Believe me, it only will get worse as they do hit the driving age, and then ACK, leave home for college.
Trish