OK, reviewing the updated list of diagnoses?
Asperger's is an umbrella diagnosis. Pervasive. There are a LOT of potential co-morbid diagnosis here - including ADHD, Obsessive Compulsive Disorder (OCD), anxiety, learning disabilities.
There is no medication for Asperger's. It is a differently-wired brain. His needs were different from the day he was born. And... while knowledge about Asperger's and Autism Spectrum Disorders (ASD) have been out there for many decades, getting that info down to the practice level and getting early and accurate diagnosis has been lagging far behind.
They claim don't diagnose in a child bipolar.
If they won't diagnose bi-polar when it exists (don't get me going on that one)... then at least they have to give you DMDD. And this group of mental illnesses are major - not situational depression, for example. Hyper-sexuality often goes with bi-polar.
He's in a family of six. Of which the siblings are all girls. (sorry, it's bad enough with brothers and sisters when all of them are neuro-typical. Neurotypical girls are going to make a non-neurotypical fellow feel really inadequate really fast. Even when they do not intend to)
What kinds of interventions has he had from a young age? Does he have an IEP at school? Is he receiving specific autism services?
Do you have a safety plan for your girls - and for yourself?