I haven't been to a naturopath, but I have seen a holistic nutritionist. It can be somewhat anxiety producing, due to the constant vigilance about food intake and what you can/can't eat, but it's temporary as you let your digestive system recover, not a forever thing.
I've found that of all my anxiety symptoms, my gastro ones have lingered much, MUCH longer than the others, so they just take a while to clear up. However, I'd much rather take a natural approach, even if it takes a while, than be prescribed meds. I don't trust PPIs, as they prevent the stomach from producing acid, while it's acid that the stomach NEEDS. Paradoxically, symptoms of a lack of stomach acid are the same as too much acid, and doctors just toss PPIs out like candy, usually.
If you're willing to invest the time and the effort, then I'd say go for it. Also, it's good to remember that you're never going to be completely able to follow any naturopath/nutritionist's diet perfectly, and that if you mess up a little, it's okay. The body is incredibly resilient and some slipping up won't kill you.
Hope this helps. Good luck!