Im 65 years old, male, 175lbs. I have Chrons disease and have been taking Humira for several years. Ive been physically active my whole life by mostly running. Now i can only run about 2 miles at a very slow pace, 13 min/mile. My legs, ankles, and feet are so sore its hard to do this daily. Im constantly in some mild annoying pain. If i sit or stop moving it gets worse. I assume it just age. Its very discouraging that I cannot exercise on a daily basis. Any suggestions would be appreciated. Thank you.