Ever since I had that scalenectomy 20 years ago, looking down causes me terrible pain. Not just at the time, but for a long while afterwards. It wasn't this way before the surgery, it got much worse after surgery.
Holding a book, or paper, and trying to read it is almost impossible. It just gets too painful. Also, a computer page that can't be scrolled will cause me pain, if I have to look down at the bottom of the computer screen to read it.
I was hoping this was something that would improve with all my joint mobility exercises, but so far it's not.

I've improved in a lot of other areas but not here. I'm not really very confident that this will ever get much better.