"Slightly bloated" would cause me to be concerned too.  But not much to do, other than what you have done, if acting normal.  I would make sure it was vaccinated with an 8 - way clostridial vaccine.  And if I had to catch him again to do that I would check it's temperature and also give it 15 - 20 cc penicillin  sub Q.

If you have a regular vet I would just call him/her and run the situation by them and get their opinion....