I don't know if it's an immediate option but ECT is an option that doctors can turn to. Also, some antipsychotics are being approved for depression (Abilify and Seroquel XR). Also are you in any type of therapy? CBT is the best type of therapy that I've heard yields the best results. There's also support groups that may be available in your area that you can utilize. There you can meet people who may have gone through what you are going through and be able to give you advice on how to help deal with it.

I hope I've been of help. Best of luck to you and I hope you find the most optimal treatment for you.

Andy...