Print. The rotator cuff is a group of muscles and tendons that surround the shoulder joint, keeping the head of your upper arm bone firmly within the shallow socket of the shoulder. A rotator cuff injury can cause a dull ache in the shoulder, which often worsens when you try to sleep on the involved side.rint. The rotator cuff is a group of muscles and tendons that surround the shoulder joint, keeping the head of your upper arm bone firmly within the shallow socket of the shoulder. A rotator cuff injury can cause a dull ache in the shoulder, which often worsens when you try to sleep on the involved side.
Generalized Anxiety Disorder Symptoms & Signs. Symptoms of generalized anxiety disorder can vary in severity and may not be the same in all individuals suffering from anxiety. Common symptoms include restlessness, nervousness, worry, difficulty with concentration, feeling as if the mind is blank, sleep disturbances, muscle tension, and fatigue.
The main symptoms of anxiety are fear and worry. In turn, anxiety can cause or go hand-in-hand with other problems including: 1  Restlessness. 2  Sleeplessness. 3  Depression. 4  D ifficulty concentrating. 5  Difficulty completing tasks. 6  Difficulty getting along with others.