I have an adolescent cat that I adopted as a kitten. For some time now I have noticed that he is purring a lot. I know that when giving affection this behavior is normal but my cat seems to start purring whenever I'm in the same room as him or even when he sees me from another room.
I understand that constant purring is a thing to worry about. It happens when cats are sick or in distress. I do not believe he is sick as he recently had a visit to the vet for a checkup and to be neutered. He doesn't seem to be in any discomfort or distress - just a happy go lucky black trouble maker.
My predicament is should I be perplexed by his persistent purring and if not, how much purring is too much purring?