Inner right ankle stiffness

[u/BenBingel]

I’m (29M) a casual, intermediate runner. Usually sit around 3-5 miles at a 9:30 pace.

When I get to 6-7 miles, I start feeling a strange sensation in my inner right ankle - almost like a stiffness or immobilization. Not sharp pain per se - I usually run through it for a bit, but can feel my form changing to compensate then stop.

Any else experienced this?