IBS can cause all sorts of strange symptoms, unfortunately. 🙁 For me personally, burning from acid reflux is in my chest rather than my stomach. I've only really had it during my pregnancies though, so it might be different.
Whenever I'm flaring, I usually try to take my mind off of it as much as possible, by watching a TV show or YouTube videos, or by doing some chores around the house if I don't feel too bad. This obviously doesn't work for severe flares though, then all you can do is rest basically. A heating pad and herbal tea always feel comforting to me as well and ease the anxiety a bit.
I do use herbal remedies for my IBS as well, I listed them here: https://irritablebowelsyndrome.net/living/herbal-remedies, if you're interested.
Regarding the vicious cycle between anxiety and IBS, I definitely feel like working on the anxiety part can make a huge difference. For me, not feeling stressed or anxious at all often helps me feel quite normal for weeks on end.
When I started working on my anxiety and how I treat and view my body (instead of feeling angry at my body for causing me so many issues, I learned to view my symptoms as my body communicating that something is off), and then also adjusting my diet to make it as nourishing as possible without triggering my IBS, I started feeling so much better. Not just with IBS but in general.
If you're worried about the hypnotherapy not working, maybe you could give EFT a go, as you can try it for free? I've found this video for you: https://www.youtube.com/watch?v=mXyPt82eyQU about feeling hopeless (because you mentioned that you feel like nothing will help you). The videos from this practitioner always work for me, so I hope they might help you, too. Of course, you don't have to do this if it doesn't feel right! I'm just sharing my personal ways of coping, but we're all different.
Big hugs, Karina (team member)