I hope the gabapentin helps you with the anxiety. I know it is prescribed to many for it, so it must have good efficacy for that.

I imagine you've tried a good number of medications over the years. Have you ever tried Abilify (aripiprizole)? I once found that on a list of antipsychotics that are often helpful for anxiety and depression. The others are ones I'd assume you'd not like so much because of high incidence of weight gain. Abilify was completely weight neutral for me, but didn't work out for other reasons. Some swear by it.