12 wks post orif met.- swelling, pain (mild, sometimes sharp), redness. meant to walk, physio. starting walk/run program 1 week. good idea? advice?

Check up : I would sure get a check up to make sure it is fully healed. The concern is that if you already have pain and swelling in your foot at your current level of activity, it may become worse as you increase your activity level. The bigger question is why you still have redness, pain, swelling 12 weeks after surgery. Just make sure you get a good checkup to ensure it is healed.