Cuteangel, I'm sorry about your son. There are many things you can try but there is no way I could get into all of them here!

You might check out this large parents survey on what has been helpful to kids. The link to the survey for Aspergers is also at the link below. The best rated Aspergers interventions are similar.

Autism Research Institute treatment parent ratings 2009
http://www.autism.com/index.php/treatment_ratings_asd
"Detox. (chelation)" 74% report "got better", 3% report "got worse", 23% report "no effect"
The 74% rating is the best of the many dozens of listed interventions.

Please learn about adrenal insufficiency! If your son's case involves heavy metal problems to some extent, it is a good bet that he'd benefit from adrenal support. For youth that might be limited to Adrenal *Cortex* Extract, almost certainly NOT whole adrenal when anxiety is involved! more on that if requested.

People with Aspergers and heavy metal problems very commonly are emotionally sensitive, including to criticism. I've been there myself and I've been seriously dating someone who is similar. I also am an assistant manager of a non profit org where teens and young adults with high level autism and aspergers can volunteer. I suppose I connect well with them because of my heavy metal problem. (thankfully the symptoms have improved)

Along with adrenal support and dietary modifications, you'll likely want to look to support production of GABA. From the hundreds of hair tests I've seen from the detox groups here and Yahoo, when lithium is very low and mood problems exist, the person usually likes the "chilled out" effect of a couple of mg of Li orotate per day.
http://livingnetwork.co.za/chelationnetwork/hairtest/hairtest3/

Magnesium should be on your short list of things to consider, especially since it is involved in production of some important mood related brain chemicals.

If you decide to consider detox, you'll have to decide on the method (protocol.). I chose Cutler's protocol due to its use of well known chelators and his very conservative approach. There is a small Cutler support group here. Yahoo has support groups for autistic kids and a large Cutler support group for adults. For example this teen expresses the complex combination of physical and mood related symptoms in those with heavy metal related problems. (note: it will not be an entirely pleasant read for a parent but it is certainly hopeful. I think he is now improved enough to take college classes but not enough to withstand the emotional challenges of living on campus)
http://health.groups.yahoo.com/group/frequent-dose-chelation/message/64260

Groups such as these will help him to understand that there are good reasons for why he has his list of symptoms including such things as social anxiety. They provide hope and encouragement to stick with special diets, supplements, medication, etc.
http://onibasu.com/archives/fdc/77047.html

My close female friend has a long history of anxiety and PTSD but she also has what might be described as limbic ADD. I would not be surprised if your son has something like that as well.
http://add.about.com/od/adhdthebasics/a/Interview-With-Dr-Daniel-Amen.htm

It is not uncommon for people who report ADD to have more than a little cadmium on their hair test. That was the case with me and my female friend. Cd is not as well known as mercury and lead but its effects can be devastating.
http://en.wikipedia.org/wiki/Itai-itai_disease

ATB

Joe

Is he diagnosed with ASD