I personally cannot take any anti depressants because they cause me be become manic. Maybe your pdoc is worried about that.
If you are feeling like the lithium is not working, you reallly need to stress this to your doctor. The pdoc should listen and adjust meds appropriately. Another thing is that pdoc might feel you are not giving the med time to build in your system. Have another chat and be honest and the him know your situationView Thread