Hi There. I Sprained My Ankel About 5 Years Ago

Hi there. I sprained my ankel about 5 years ago and i rolled it outwards, i think i may have even broken it as i could not put any pressure at all on it and it was extremely swollen and bruised right down to my toes and took over a year to be abel to even walk without a limp , silly me never got it checked and now years later it is still causing issues it makes a loud snap sound most steps i take and is swollen and really hurts after work everyday.. advice on what i sould do and what u think it could be would be very much appreciated. Thanks for ur time ..
Chelsea