https://www.youtube.com/watch?v=HxvRQ9ZJ8vQ Chiropractic adjustment will help. 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. Core Strengthening Exercises- Straight Leg Raised With Toes Turned Outward, repeat 10 times, twice a day. Chiropractic treatment.

X-ray / Mri low back

Hello It may be bcoz of muscular spasm or tightness, dont worry  consult near by physio and take stretchings n strengthening exercises to affected muscles

You should go for stretching of tight muscle and strengthening for week muscle

This is pudendal nerve compression, no specific test needed. Consult a PHYSIO for gluteal muscle strengthening or piriformis release.