So familiar- the anxiety about the building physical reactions causing your physical reactions to build which causes your anxiety to worsen...Sounds like me.

I used to do it to myself with migraines and vomiting from stress. Luckily the migraines are getting under control. I have found for me no matter what i have going on and how angry it makes my husband, I take pain killers and go straight to bed when I feel one coming on. Somehow i can usually sleep despite my anxiety when the migraines come on, although sometimes I will still wake up vomiting, at least I no longer have to feel with that incredible pain, the visual disturbances, vomiting from light, sound, lack of light, lack of sound.

Yep, my migraines I can control as long as I step back from what I'm doing immediately and take care of myself. The vomiting I can usually prevent by taking acid reflux meds and watching my diet. The self-loathing for allowing my mental health take over my physical health and disrupting my life? Well, it's improving with my symptoms but will always be present as they take over (which increases my anxiety...)

Is stress the trigger for your migraines? If so, perhaps you should talk to a doc about getting medicated for your anxiety. If you can stabilize that some, perhaps your physical symptoms will improve as well.