I have had the same issues. Usually when I am getting adjustments because of a hearing change or new aid, I schedule weekly appt's with the audiologist until we stop finding things to adjust, then making it a month out.
This is something I really dislike about HA's today. You would think that with today's technology they would put more control in the hands of the users. I would love to be able to continually be able to make tweaks to my HA's as I am experiencing different environments. It's nearly impossible to do from sitting in a quiet office with 1 person.