I'm sorry my friend - I feel your frustrations and know how terrible those lows can be. And feeling helpless because the pdoc won't help, and you can only see T every 3 weeks - doesn't help.
I really wish there was something I could do to help and make you feel better. Just remember that you came through the depression the last time - this time will be no different. Hang in there for the rough ride, and you'll come out into the sunshine soon enough!