I feel like my body is anxious snd my brain tries to apply the anxiety to it. I’m not sure how to word this haha but I’ll try my best. So I think from (mainly) lack of sleep, lack of etc just a lot of the usual stuff my body is constantly in an anxious state. My heart feels like it’s racing etc a lot of the time. And then I think my brain just applies something I’m slightly worried about to this physical anxiety and it just escalates. 
I’m not sure if this is understandable but maybe it’s just more so that I can write it down and try make sense of it myself