[DanBC]

Have you ever had the experience (usually while walking and wearing headphones) of being aware of your breathing? And suddenly breathing is tricky? You don't know if you're breathing loudly or to deeply?

All your life you've been breathing and never noticed it, and then you notice it, and how weird it is.

Do you think this may be what you're experiencing? Just increased awareness?

As an over-cautious footnote: This will probably not happen, but if you start to notice "odd" things; (people who can put thoughts in your head, or hearing voices, or whatnot) please seek psychiatric assistance. Early intervention is important. But, like I say, this is almost certainly not relevant!