That your situation has been through multiple iterations of treatment and that migration and battery problems have plagued you; and, here I have been glad of my paddles which have not experienced migration and, so I am told, were secured very well. Just wish I knew what and whether to offer more solace than you have now by way of continuing to work with your docs and rep.
One thing I do know is that we all care here and would readily reach out to provide help as we each have experienced different approaches and situations.
Caring,
Mark56