Hi
Check out these sites for answers to your pain! Good luck!

Self-Treatment for Finger Pain, Thumb Pain, Stiff Fingers, Knuckle, Hand, Wrist

ACTIVATION AND PERPETUATION OF TRIGGER POINTS in the coracobrachialis usually occur in ... The line of pain may extend to the tip of the middle finger. ...
The Trigger Point Therapy Workbook: Your Self-Treatment Guide for Pain Relief By Clair Davies, David G. Simons, Amber Davies

Coracobrachialis © Copyright American Academy of Manual Medicine

ROUND EARTH PUBLISHING: INTRODUCTION TO SHOULDER PAIN