From my own personal experience (broken fibula, surgery to repair using 2 screws), don't push it. Even after I was able to walk normally again, weird things will cause pain and running/skating falls into that category. I lost all of my lower leg muscle tone, too, which made my right leg feel weird for a while
even once I started walking again (though our bodies regenerate that muscle astoundingly fast once we use it again). Granted, I did not do any real PT beyond a balance board and ankle movement exercises (probably should have) and I had a bad medial sprain in addition to the fracture, so YMMV.
Not to hijack too much, but I have struggled with getting back on the ice on a regular basis since then (5 years ago) due to phobia of being injured again, and the realization that my cheap, painful, poor-fitting skates probably contributed to my injury. I am finally going to take the plunge by purchasing new skates that fit well (and springing for skates stiff enough to support my size) and taking some skating classes to get back into it. If anyone has any suggestions for getting over this fear, I'd appreciate it.