maybe try an atypical antipsychotic like geodon. In lower doses it works as a mood stabilizer. It has to be used with an antidepressant, but the antidepressant can be at a lower dose.
It's what helps me "feel" without being too high or low. I cry at sad things (that dang Kroger commercial got me the other day) and laugh and am generally happy. It keeps me focused and sleeping through the night.