Probably an over compensation injury. Heat and ice therapy, kt tape (you can look on YouTube how to tape for your exact issue/stability you're looking for), braces, electric stimulation machine to help speed up recovery by getting to the root of the problem and un-tightenong your tendon, ibuprofen reduces swelling, take breaks and sit down when you need

My podiatrist reccomended electric stimulation if physio didn't work, but I found physio with periodic needle acupuncture and massage worked wonders along with consistent tendon strengthening exercises , hang in there! Getting function back can be a mission but be gentle on yourself