Wondering if anyone else feels this way.
I'm at a point where my anxieties are very under control, id say I'm usually at a 7-9 out of 10. 

However suddenly I'll start having the feeling of fever, stomach pains and general discomfort. All seemingly out of nowhere, without having something noticable triggering it. This usually lasts one or several days and makes me believe I'm about to die, or at least starting to be sick.

It bothers me since I otherwise seem to feel quite decent and understand what my triggers are and what to avoid.
I am dealing with health related anxiety, not wanting to be sick in general and absolutely terrified of vomiting etc.. 

Currently on my 2 day of feeling not great and was wondering if anyone ever get the same feeling and can relate?
What do you do to feel better and do you know what may trigger it in the first place?