IBS symptoms getting my HA out of control

Hey all,
I do wish I wasn't back here writing another thread but, at least, writing out my thoughts tends to help a little.

Currently I'm really struggling to stay on top of my health anxiety thanks to my IBS symptoms. I'm constantly bloated and burping, sometimes I feel nausea, and I alternate between diarrhea and constipation almost all the time. I've been to my doc a few times about it and he's diagnosed IBS and doesn't feel a need to do any further testing.

Despite all that, of course, my health anxiety gets the better of me sometimes. I'm in the middle of a flare-up with my symptoms and my anxiety just won't listen to reason. So of course I'm convinced it's stomach cancer.

I am on Paxil for my HA and it's been helping for several months. I'm wondering if I may need an adjustment on my dose if this doesn't ease up soon though.

The reasonable part of my brain says:
The flare-up began because I was going through a very stressful and emotional time last week. My flare-ups are always related to stress and this isn't different.
I ate greasy food in the middle of it and probably made it worse.
Gas pills help the bloating. If it was something like a tumor, over the counter meds wouldn't help that much.
And most importantly, it feels better when I'm not thinking about it!

More than anything, I just wanted to write this out so I can see my own rational thinking about it. Always seems to do me some good!