Whenever my bf does things for me I get a twinge of guilt, like if he asks if I'm hungry and grabs something for me, or takes something to the kitchen for me.
I do a lot for him as well though, so I see it as a personal hangup and let him do things for me when he wants to.
The way I see it, some people need to learn to give of themselves, while others need to learn to take for themselves, because neither is healthy out of balance with the other.