Maybe you should have your original tests sent to Cleveland clinic for a second opinion and then also ask them to explain to you what this means and could it be growing really quickly or has someone misread the test or perhaps ask them when you might be needing preemptive surgery. Try to breathe deeply and excel deeply and the lowers your blood pressure which is really important to keep low saying prayers for your peace of mind and I think really the best thing to do is get all of your test to Cleveland clinic and have them talk to you about what the 5.3 they saw means . ❤️