I have island on head line...What does this mean?

You have a good question, but you need to be more specific to get a more specific answer.

What part of your head line has the island... how large is the island...what direction is your headline going...how long is your headline....these r questions you need to answer b4 I would venture a guess on what your island might indicate. For palmistry answers ... (another shameless plug): My book, The Art & Magic of Palmistry....can help u figure this out.