zimushka, the mind is a wonderful thing and very complicated.
did you know that people can actually slow their heart rate down to almost a complete stop just by focus and thinking about it..
try an experiment with yourself real quick,
lie down on a bed in a quite room, then focus on the tips of your toes,
work to the joint, keep going backwards, heel, ankle,focus in on just them parts
make sure your mind is centered so only that part of your body is recognized by your mind, work your way through every body part til you get to your mind,
when you get to your mind, let it focus on what's going on around you. listen for sounds you don't normally hear, a bird, a car, a chainsaw, whatever is out side your mind.......when you've done that a few times it will get easier and faster, and you will find your center,
now if you just focus in on your right ring finger your mind will keep call at it
like it just did, you see if you let your mind focus on something too much it will eventually become the focus, if it becomes focus then your not letting your subconscious do it's job. my advice is to simply let it go, drink plenty of liquids and juices, hydrate your body, find center and relax.
remember it is an organ after all just like your liver, it will work itself out
but your mind can't do it's job with you mudding it up with focusing on it.
you didn't do any permanent damage, but you are teaching your mind how to obsess and once it learns that, what's next,
every see someone constantly checking their pulse in their neck?
Seriously, stop using the organ, let it get over it's spell, hydrate, find center