After I Have Surgery And Chemotherapeutic Treatments And No Tumors

After I have surgery and Chemotherapeutic treatments and no Tumors but then it back a second time and I had treatment again and I haven’t had any tumors in over a year I’m taking Chemo treatments twice a month and pet scans every three months I have a pet scan tomorrow but I’m having headache bad kidney problems I don’t know yet if I don’t have a tumors now what should I be doing or know that I haven’t told you yet?