I don't know to what extent this has been talked about on here, but I find Robert Burney's website www.joy2meu.com very interesting and helpful to those with TMS. It is about inner child healing, codependency, etc. It doesn't mention TMS but I think a lot of what he talks about is applicable.
I have found that much of the codependency/inner child literature (Bradshaw, Whitfield, Miller) is highly applicable for TMS! I think these are all fundamentally the same affliction.