I also agree with Giga. Parents who expect there to be profound connections between siblings that far apart in age are bound to be disappointed. You may love and care for each other, but you are certainly not peers by any stretch of the imagination.
And no, you should not feel guilty if he ever decides to move to be near you. YOu should be flattered. But I think it is very premature to be worrying about this now. A lot changes in two years.
Relax... I'll need some information first. Just the basic facts - can you show me where it hurts?