you are not alone at all. i go through the same thing. i take 20mg a celxa a day with my lithium i have been on it for about a year and it seems to help. i was going through meds like every 3months they would have to change the deppresion med because it would stop working. my progression has been good with the celxa and like i said iv been on it a year and its still working. they did have to change me from depakote to lithium in october and since then my meds have been good.it took awhile for it to become effective which they will tell you can be 1-4 weeks. my energy level still isnt right though.
I know how you feel, i drive home after dropping off the kids to school with all these things i want to do and then i just cant do them, sometimes its hard to even empty the dishwasher and then other times I can be so productive. Its like I said in the other post, inconsistancy. mary mary quite contrary thats my life. I dont know anything about the meds sorry but just wanted to let you know you are not alone, I would say the best part of 3 yrs for me have been in the depressed state, sometimes only just functioning, have you tried therapy as well as meds. take care