One of my 2yo boars has been having some trouble recently. I noticed he was squeaking and it seemed to be while peeing. The vet did an x ray to rule out bladder stones and then prescribed antibiotics and painkillers for a suspected UTI. After he finished the course, the squeaking started again, so I followed a video on how to do a boar clean and discovered he had quite a bit of smegma build up. I cleaned it off and dabbed some coconut oil on and the squeaking stopped, but then a few days later restarted and he needed to be cleaned again. What could be causing this? He's acting totally normal otherwise! Very grateful for any tips 