Hi Fletch-- sorry you're not feeling well. I have no way of knowing if it would help in your particular case, but I have a relative whose seasonal depression is significantly helped by a light box-- might be worth a try. While depression can decrease sex drive, so can some meds used to treat it; this could be something to discuss with your doctor(s). As for bouncing back, I can't speak for others, but if I really crash it takes me quite a while to start feeling better. Be patient with yourself-- it sounds like you have been through a lot. I hope you feel better soon.