Hello dear You said that 6 months have elapsed since the injury and 3 months since the surgery. Why this time lag? And considering you were operated late i wouldn't recommend you to straight away go for running without seeing your current x-rays and preferably examining your ankle in person. 3 months from surgery is the minimum time before considering walking with full weight bearing and for patients who are operated late, it could be more. Running is a bit of stretching it.

Share xrays.

Need to gradually start increasimg the activity levels , but status of pain , movements and union on xray needs to be seen .

Now by this time ur fracture should have healed. U can start walking with sports shoes  ,gradually increasing the load and maneuvers as u gain confidence. Hot water fomentation. Wobble board excercises for ankle

U can start gradually if everything is united

By 6months your fracture must have healed, but as you have asked a professional advice. You’l need to elaborate your status as 1. Any pain 2. How much Movement possible now.

6 months is usually the time to have gotten back to pre injury level of activity. However, there are some prerequisites. If you have a very stiff ankle, you would require stretching and gradual return to activity and possibly some physiotherapy. If the fracture pattern required surgery and required something called a syndesmotic screw, that requires to be removed before resuming activity That being said, as your pain and swelling is negligible, if your doctor has cleared you for activity, I see no reason why you shouldn't. All the best

Most probably u can but better get recent x-ray first to confirm complete healing of fracture