Incidentally, I went the other way. I somehow got fixated on my breathing[1], and "thought" (rationally I knew it was wrong, but the anxiety overrides) that I w

Incidentally, I went the other way. I somehow got fixated on my breathing[1], and "thought" (rationally I knew it was wrong, but the anxiety overrides) that I wasn't breathing enough unless I forced myself to, to the point I didn't sleep for multiple nights as I was convinced I would be in trouble if I fell asleep. Got a cheap O2 sat. meter, checked it was above ~95, even after holding my breath for tens of seconds, and after a couple of hours it didn't bother me anymore. I think seeing actual evidence was enough to jolt me out of it, at least in that case. Still got my baseline, for lack of a better word, OCD compulsions, but they're at least somewhat more manageable than that was. [1] OCD/GAD can sometimes latch onto some weird things out of the blue, at least for me - having a diagnosis of central sleep apnea didn't really help either