Rotator cuff tear: A partial or entire tear of a tendon inside the rotator cuff can take place suddenly from a slide or major lifting or acquire after a while from use-and-tear in the tendon. For day after day that you've got a tension headache, come up with a note of it. https://www.theorthopaedicandpainpractice.com/chronic-neck-and-shoulder-pain-relief-strategies-to-reduce-discomfort-2/