Thank you so much for your insight and hope that this may get better.
Sounds like it is a soft tissue problem, and I understand your frustration. I have chronic myofascial syndrome in the lower back and no amount of morphine helps the pain.
But don't get discouraged -- your problem may not yet be chronic. You still have a chance for this to revert to normal, but you've got to do the exercises, and maybe more injections. Piriformis syndrome is stubborn, but I've known men who have worked through it.
Keep trying and asking for more answers from your providers. Maybe another visit to a different PT?
I apologize the EMG and MRI were both negative. I had been going physical therapy and doing the stretching it loosens me up but the swelling continues. I admit I haven't been doing them everyday because some days it's to painful and other days I'm just frustrated!!
Please be clear -- is the EMG negative or the MRI (or both?)
Nerve entrapment from piriformis syndrome is no joke -- it can hurt and cause permanent damage and constant inflammation.
Have you been trained by physical therapy in the exercises to stretch your piriformis region, and are you doing them every day?