Kaela was 29 years old when she started to feel a sharp hip pain that stretched down to her knee. She brushed it off as a sports injury, or one of the main aches and pains from her military career. Kaela was 29 years old when she started to feel a sharp hip pain that stretched down to her knee. She brushed it off as a sports injury, or one of the main aches and pains from her military career.