A long time ago, I learned about the brain-gut connection (I developed irritable bowel syndrome) especially for those of us who deal with anxiety. At times, I would become physically ill . . . before a presentation, I could not eat or drink and I would still have the "dry heaving" . . . . I am, thankfully, much better now but I still have the brain-gut connection in times of anxiety . . . I have no easy fixes because for me it was a process to mediate this brain-gut connection . . .there are meds, but I tried other non-med interventions . . . now, please do not misinterpret . . . meds can be extremely effective . . . a colleague who had severe IBS was prescribed meds (I can't remember what now) and it did marvels for him . . . .he also, though, engaged in lifestyle changes and eventually (I don't know about now as we have lost contact) he had the meds as what he called "his security blanket") . . . .I was a bit more fortunate in that exercise, eating properly, and meditation appears to be my saving graces but, again, I won't lie, I still have the physical symptoms that you describe . . .
I would suggest that you consider seeing a counselor who can guide you to identify even hidden triggers for your anxiety and help you to deal with them while managing your physical symptoms . . . I also write almost daily in my diary . . . . I try to figure out what might be bothering me and also writing helps me to take the edge off of anticipatory anxiety which, for me, is thinking about what might happen the next day . . . once I get it down on paper, I let it go because I realize that I cannot control all the what if scenarios and that makes me know that my anxiety is simply there and that I don't have to suppress it, but acknowledge it and then move on . . . oh, yes, it remains in the recesses and pops up, but I know many of my triggers and I have even resolved several of the bigger ones . . . as I say, this anxiety thing is a process rather than an event . . . but keep writing to yourself, to us, to whomever (I have a stuffed penguin who is my confidante and if I am too tired to write, I just talk its ears off) . . . we'll do our best to support you but, yes, check in with a counselor or your NP as soon as you can . . .take care, kc