My Daughter has been diagnosed many years ago with ODD/ADD..I think it's something else.?

My Daughter's doctor diagnosed her about 10 years ago with ADD/ODD but the medication she takes isn't helping anymore. She's now 17. She loses all the friends she ever makes. She is extremely lonesome, but won't admit it. She spends alot of time in her room,doing crosswords, or playing with her gameboy! She has NO social life and definitely no boyfriends.Has anyone ever had any issues like this?? I am so discouraged!! Her doctor doesn't believe me half the time, I don't think. (He's a specialist as well)...can anyone help?? She's going to have a lonesome life if I can't find her some help soon!!