I think you should but if you feel you aren't comfortable with it you can still keep it a ecret but if you knew that they will accept you no matter what or it is your besties then perhaps you could tell them your story... PS. Please don't listen to my advise I'm really not sure about it but it's u to you how you wanna do it :)
yeah go ahead and tell them i agree be gentle. i have lost some friends when they find out but your true friends will stay with you. it may be uncomfortable at first but that will pass. at first i didn't tell to many people but that kept me from letting any one get close to me and led to a boring life. its better to be out and enjoy your self. good luck david.