 [ Symptoms ] i have adult polycyclic kidney disease ache in lower abdomen is it normal [ Disease ] 1  it could be just flatulence and spastic colon so take spasmodigestin to decrease the bloating sensation also eat vegetables and fruits yoghurt avoid spicy food2  u should do kidney function test to rule out any kidney trouble as u r a high risk patient 3  pelviabdominal us following the tests and the new diet regimen if both are done with no improvement