I think i was abused, but i have no memories of it.. Please help

P.Bear, it is impossible (quite literally) to determine whether or not an individual was sexually aused as a child in an online forum.  There are various parameters of "normal" developmental milestones, and self-awareness and sexuality are one of them. 

You mentioned several behavioral disorders - were each of them formally diagnosed?  Are you under the care/guidance of a counseling therapist (NOT psychiatrist)?  Are you currently taking prescribed medications for any of these disorders?  Are you currently self-medicating?  I'm not asking these questions to stand in judgment or to pry - the answers are all integral in your emotional health.

There can be endless reasons for high sexual energy.  It can be as simple as a genetic predisposition, or as complex as molestation, and everything in between (to include bullying, family dysfunction, etc.).  So, it might be a good idea to sit quietly, write down your initial concerns and consult a recommended Licensed counseling therapist.  And, consulting a therapist doesn't mean that you're obligated, in any way.  It's just a starting point.

Best wishes to you.