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.

Looks like you may have slight scoliosis of spine. It will be better to get examined in clinic, and may be also get X rays done, if needed

Wrong Posture. X-ray must to know exactly.

Need more details. I would better reply tomorrow. Thank you. Good night

Please consult with a Good Physiotherapist Who will examine Back Muscles.