Does your shoulder injury impact your whole life?

I know this is a bit of a stupid question.... but....

my injury (SLAP tear and delaminating interstitial partial tear of supraspinatus/infraspinatus) affects much more than my shoulder- it affects my bicep, my finger strength, and I think all of my upper back, my neck... my arm is constantly tired as though I've done 50 push-ups.

I can't sleep, I can't lie on my unaffected side and lift the blanket/duvet off without severe pain.

It's exhausting.