How Do I Get Some Doctors To Take Me Seriously?

I have Chronic Pain with Injuries and am not really being taking care of for pain relief. Am not saying that no one helps, some do, but, the medication, barely touches my pain. It's mostly the primary care and specialists that aren't 'really really listening'/helping.
I also use heat, ice, and do other things to help with pain.
They have the proof of diagnosis's.

I am having serious pain from a.. foot injury, costochondritis, a surgery, and from a concussion.

Updates
+1 y
Also not on anything for my disability I was born with, I do not need to take it everyday, just when the pain is bad enough
How Do I Get Some Doctors To Take Me Seriously?
Post Opinion