I had anxiety with and after C-diff and on and off during a year of PI-IBS. I never took anything for it as it was manageable. Then I get a second attack of an unrelated gastro issue last year and I got so panicked about it being C-Diff again or something else horrible that I really was on the verge of a nervous break down. After going to a terrible GI's nurse, who treated me poorly, I started to panic and told the staff I was having a panic attack. They responded "the nurse doesn't do panic attacks, go see your regular doctor." I was losing my mind so much at the time, that for the first moment of my life, I was experiencing this weird out of body thing, where I felt like I was looking at myself from above even though I was awake. I was calling my parents telling them what happened in the car, then I felt like I wasn't in my own body, like I was talking but didn't understand the words coming out or what was happening, so I said "I'm not well, talk later" and hung up. This made me even more scared and I thought I was dying. My fiancee noticed this is a serious mental issue (she had/has them herself) so double timed it to my GP for me (she was driving, thankfully). I simply walked into my regular doctor looking like hell and said I needed help, had D for 8 days, was dizzy and my heart was racing and was having weird panic attack issues, they got me in within 15 minutes. The doctor checked me out and wrote me a temporary scrip for Xanax. I took it for 2 weeks on and off as I was in the hospital then recovered, then never again, it helped a lot.
I've not had an episode like that since, but it was so terrifying. I also changed doctors after this incident lol. So if you need Xanax or something, no shame in taking it till you get over that hump. I never want to take it again, it makes you feel odd, but it helped when I really needed it.