My anxiety is up and down.

I had an attack the other night that  wasn't good (saturday), So i've been off for a while.. I think the reason is not that my anxiety is getting worse. But i'm precieving it worse than it is, Like all anxiety that i have.. Basically i get a feeling in my body, like a stomach ache or cramps or a bad ache in my body and my brain starts to connect those things to really horrible outcomes, And then i start freaking and getting anxious about those possible outcomes..And then the circle of anxiety starts to  get worse.. I get more anxious, and think more bad thoughts... and it ends up causing me to be seriously indisposed if i continue the thought pattern.