John, there is often a positional fault of the ankle (distal tib-fib joint specifically) after inversion type ankle sprains. There is a quick and easy treatment that helps ... it's a Mulligan technique utilizing mobilization with movement ... and also a taping technique to reinforce.
Here's a short video ...
Do you have a therapist you normally use? If they are familiar with the technique, it can literally be done in less than 10 minutes and can make a HUGE difference. If you don't have a therapist ... I can recommend some that could help ... I know many excellent therapists in the state ...