Clicking is not terribly uncommon and it also NOT a sign that you are breaking, but it is something that you should work to locate and mitigate if possible.
Stretch your calf, and shin. These are the muscles that are pulling on the many moving parts that is your ankle.
YES. It is possible to have inflammation without swelling.
What would cause inflammation to build up in an ankle?
An old Injury
Foam roll the entire leg but especially the sides of the underneath of the knee joint and working your way down to the ankle noting all sensitive areas.More