I'm on 40 mg of prozac along with 450 mg of Wellbutrin. You'd think I'd be bouncing off the walls but it has never made me manic. I'm bp2 with severe depression so that may be the difference. Yes give it a try since you already have a plan to checkout (have you told your doctor this?) and are IP. If it doesn't work you can come back off.
I'm sorry you are having such a hard time. I hope you feel better soon.