I blended aeddie's food for an entire year and fed him with a turkey blaster. Swollen jewels for him had to do with needing antibiotics die to easily caught bacterial infections due to immune system problems. Then he couldn't poop, so I held him vertically every 4 or so days and massaged down. We survived a year that way. Eddie seemed happy.
It is likely liver or kidney causing it, in my opinion, but he can live longer if you make adjustments.