Thanks guys and
@josul is right it is the typing thumb
and what a nightmare after you break it.
Not sure how but slipped while coming downstairs Thursday night and broke my thumb whilst trying to save my ar*we from getting hurt. Only realised it 10 mins after when I noticed the thumb facing the wrong direction
. So, closed my eyes and clicked it back to its original position, which I am really proud of myself
. Been advised rest for 2-3 weeks, have another appointment tomorrow as x-rays showed potential damage to ligaments
. We'll find out.