I had a major problem with synovitis ( this is where there is an inflammation of the lining in the joint ).I was in constant pain and it was always grabbing , pinching, in the center of the ankle. None of the NSAIDS helped, I had to be put on Panlor and Vicodan for pain. I wound up having arthroscopic surgery to remove the fluid. A MRI was used to detect this. One of the doctors didn't detect this and I went to the 2nd which did. It took a year to have the surgery. Sometimes my right leg and ankle hurts ( not bad ) because it is taking the brunt for my left leg. I tend to baby the bad leg. I am waiting to have my 4th and hopefully final surgery on my left ankle.
Look for any swelling in that ankle and let the doctor know the syptoms ( where the pain is at, what it feels like, and swelling) and let him take it from there. My pain was in the center of the joint, natural labor felt better, over the top of the foot was swollen, and the pain made me sick to my stomach.