I've had a pain in my shoulder for some time. some times it will radiate to my hand, others in my arm pit. my shoulder its always sore and feels almost like it needs to pop and stretch and be pressed down hard at the same time. it's the most frustrating

Get some PT: Sounds like you need a doctor exam for rotator cuff strain and a course of physical therapy combined with some Naproxen. If not improved afterwards, then an MRI. TRIGGER POINT INJECTIONS could also benefit. Have your doctor palate your trapezius from neck down across your shoulder, your supraspinatis, and over shoulder blade for discrete tender spots.