when i first started to complain about the pain my foot doc knew what it was, he would unwrap my foot and it would turn purple you could see the sweat beading off of it air would hurt it and i would guard it i would cry when he would touch it. one day i ask him how did you dx rsd so fast he said when i went into surgurey i wasnt fully under and they hit the bone and i didnt move or say anything and he said he knew i could take pain and to come into his office and cry by him lightly touching my foot he knew he also said i was text book had all the symptoms. i did have to get a mri and did the alchol test and my foot went 20 degrees colder then the other and stayed that way. i went to see 2 other dr to confirm rsd, by this time 3 months after surgery my foot was blue and atrophy has set in toes ankle are frozen wont move, again rsd was the dx.