If it produces no stress, then probably it is not worth doing it. I have done over 150 gigs with my current band but there is still a weird stressy feeling before i head to the gig - it goes when I start to setup, I think it is anticipation / have i forgotten anything etc.
Meeting up for a jam is fine if that is what you have signed up for, with my current band if we had no gig there would be no point to meet up, although the guitarist often tried to force a practice because he viewed it as him practicing, which is not what it is about. Learn the song, get good at it, then practice it with the band.