Our bodies change. It could be that the new dose will improve things, or that you need another med to work with it. Even if other meds didn't work for you in the past, maybe some are worth revisiting in combination with the lithium. I look at it like a Rubic's Cube of moveable meds. And it's a new cube each time because of changing chemistry and hormones.

I'm only one week into lithium, which I took many years ago with a couple other meds, and so far I feel nothing. I've had to stop lamictal, though, which I used to well on, because it was worsening my depression.

I wish you well. Hang in there.