Have you spent weeks, months, or even years performing the same exercises prescribed by your previous provider?
Hamstring stretching for low back pain?
Piriformis stretching for sciatica?
Banded rotator cuff exercises for shoulder pain?
How about pills?
You may find temporary relief from these activities, however your pain continues in the long-term. Pills seem to only "take the edge off" and you continue the vicious cycle of pain and no answer to the real reason behind your issues. These stretches and exercises are typical among standard physical therapy and yet are rarely effective. Your hamstrings are not short, your sciatic is not "caught" in your piriformis, and your rotator cuff is already strong. A proper approach with thorough assessment can identify all the reasons you are in pain.
“The definition of insanity is doing the same thing over and over again, but expecting different results.” -Albert Einstein
Please ask yourself why you are still doing the same things over and over and expecting long-term improvement. It's time for a different approach.