Piriformis Syndrome - Do you have difficulty in legs crossing(cross leg). Which leg? Profession? Do you feel any bump in the gluts? Can help.
Next Steps
Muscle stretches. But if too much pain due to tight muscle, then an injection- ultrasound guidance into the triggers/spasms if any.
Health Tips
Can check for yourself if it is actually Piriformis . Lie down on the bed. Watch the ankle of the leg with pain. It's usually deviating out.