Hello I believe I can help you with your concern
I am sorry that you had these issues with the Cymbalta and your kidneys before.
First off after 3 months of not using the Cymbalta, you should have started at an initial dose 30mg or even lower in some cases to let your body adjust the medication and then slowly and gradually increase the dose to the 60mg that you were at before, so it is possible tha the "knocked me out" feeling that you had was caused by taking too high of a dose too soon
I think seeing a psychiatrist would be a great idea for you as you may not have typical symptoms of depression, if that is what you medical doctors believe that you have. And a psychiatrist can recommend an appropriate assortment of psychotropic medications to help you with these symptoms that may be more effective than the Cymbalta, with less side effects.