He/she might not be having any trouble eating, but along with giving smaller meals for awhile it's also a good idea to soak for a few minutes shortly after feeding. Mine had some serious issues awhile back (long story but the health issues sound pretty similar to yours). Every time she ate for a few weeks after that she started retaining fluid really badly. Soaking after feeding helped get that under control.
If yours is eating on its own it's probably not as bad off as mine was, but the soaks couldn't hurt. Just something to keep an eye on.

If she wasn't getting fed much before that's probably lucky. The worst problems with this come from their systems being full when they go into aestivation. The food can go septic in their system.