Hello, As you been having confirmed with MRI about the Cervical spondylosis, is there any major nerve root entrapment or disc misplaced position. Also since you complain the pain in leg have you taken the MRI of the lumbar spine? Any nerve root entrapment in that region? Now since the pain is now allowing you to run and have difficulty in the early morning after waking up, I think you should start doing exercises to stabilize the core, spinal muscles, hip muscle, lower-limb as a whole. This will help reduce the stress over the lumbar spine nerve roots and also improve the functional ability. As you mentioned about the cervical spondylosis you need to do exercise even for the neck muscles and upper limb as a whole. Use hot water fermentation for neck and back which can help you relax the spasmodic muscles. If exercise followed with disciplined than optimum results can be achieved by 3 weeks of time. Later on, the exercise should be followed to avoid getting the muscle into weakness. Hope I have answered your query. Let me know if I can assist you further. Take care Regards, Jay Indravadan Patel, Physical Therapist or Physiotherapist