It's compression of nerve in ur buttock termed as PIRIFORMIS SYNDROME

Apply Hot Fomentation twice daily. Avoid bending in front. Postural Correction- Sit Tall, Walk Tall. Extension Exercises x 15 times x twice daily - lying on tummy, take left arm up for 3 seconds, then bring it down, right arm up for 3 seconds, bring down. Bring right leg up, hold for 3 seconds, bring it down. Then right leg up and hold for 3 seconds and bring it down. Repeat twice a day- 10 times. Bhujang Asana -- Lie flat on your stomach, keeping the palms out, bend the neck backward, take a deep breath and while holding it for 6 seconds, raise the chest up. Release breath and relax your body. Repeat the exercise 15 times twice daily.

Hello there...... If you have leg pain from cramps or overuse, take these steps first: Rest as much as possible.Elevate your leg....Apply ice for up to 15 minutes. Do this 4 times per day, more often for the first few days....Gently stretch and massage cramping muscles....Take over-the-counter pain medicines.... Other treatment options will depend on the cause of your leg pain..... Consult Orthopedician..... ,,