Hi, Thanks for your query. your pain is due to Arthritis. When bone is not able to take weight due to arthritis than it has to be shared by muscles. It causes pain in thigh and calf muscles. The following measures will help with the pain Do regular Exercise. Exercise can increase your endurance and strengthen the muscles around your joint, making your joint more stable. Stick to gentle exercises, such as walking, biking or swimming. Lose weight if you are obese- Being overweight or obese increases the stress on your weight-bearing joints, such as your knees and your hips. Even a small amount of weight loss can relieve some pressure and reduce your pain. Use heat and cold to manage pain. Both heat and cold can relieve pain in your joint. Heat also relieves stiffness and cold can relieve muscle spasms. I do hope that you have found something helpful and I will be glad to answer any further query. Take care