Feeling guilty

So tonight I am sitting here and feeling pretty guilty for leaving MI.  There are so many people back home who could really use my help right now, and I am to far away to do anything,  I feel selfish.  I know my husband and I made this choice to better the life of our children, and I am happy we did it for there sake.  But I cant help feeling like I should be back home helping the ones that I love.  :(