> Another weird/fascinating factor for me at least is that less convenient access to a toilet seems to correlate with less symptoms. When I'm hiking in the mountains I never seem to have a high frequency of needing to take a dump.

Not Chron's but a related disease. For me the symptoms are strongly correlated with how embarrassing it would be if I had to go. So hiking in the mountains is pretty relaxed (unless it's a date or something), just find a spot off trail. In the chair at the dentist with instruments in your mouth and a bib on? All of a sudden I've gotta go.