Hi, I take propafenone 150 mg 2 pills twice a day for afib, I have been on this several years, my mother died with kidney failure, I read this can happen taking this meds, my urine is dark yellow, had urinalis said dark in color but no infection at this time., question, urine out put sometimes slow, drinking water has slowed alittle during winter, and am on blood pressure meds with water pill, should I be concerned taking this now for 3-5 years