Greetings,
Sorry about your swelling. Going by your description there is no sensation disturbance, hence consultation with a neurologist is of no use. Swelling should be a issues related to ligament /muscles imbalance.
Next Steps
consultation with a physiotherapist will solve the issue.
Health Tips
what a physio normally do is apply tape, trigger point therapy and exercise to strengthen ankle/foot muscles. lab tests to confirm why you got swelling will give you a better idea as to why you got swelling in the first place.