You may have stated this in the past but are you seeing a neuro or have you? It is hard to know sometimes what was the cause. My rsd is in my inner ankle/foot/calf and spread to both and possible eyes. I have had this 2.5 years and finally am making progress but still the pain is high and I am limited. I am sure you stated but are you on meds for the pain and burning? Are you in PT? I know especially in the start my ankle felt like I would give out or was broken but now even through the pain it does seem stronger from doing more on it. Just hard when the pain is so high to keep moving. Sending thoughts