I had a stress fracture of the femoral medial condoyle with severe edema. i used a waker 10 weeks to put minimal weight and now am using a knee brace at times; sometimes a cane. walking with no aids at all feels uncomfortable. what should i do?

You need to report back to your doctor. The fracture should have healed(under normal conditions) within that amount of time. (6 weeks). You should make sure fracture has healed and not displaced. Rehab is what is required at this time.

Physical therapy for strengthening will be needed along with follow up with you Ortho doc to make sure the fracture has healed properly.