So I have anxiety, which I'm pleased to say has greatly improved over the last few months, however there is one symptom that I just can't shift. I have a twitch in my diaphragm and I can't stop doing it. Sometimes it's involuntary but most of the time I do it on purpose. I find it hard not to do it and it's starting to affect my perception of my breathing. Because it's tense all the time from the twitching, I think it's making it harder to breathe, but I only notice this if I'm thinking about it.

Does anybody have any tips on how I can stop doing this as it's starting to affect me? 

Thank you