Hi, I've had achilles tendon reconstruction and a mortons neuroma removal and planters faciitis release. (3 separate surgeries) I also have fibromyalgia and it takes me longer to heal. For the achilles tendon it took me 3 separate iterations of PT to get thru and the last one included water walking which saved me.
It sounds like you are having some nerve problems do they have you on anything like lyrica, topomax, neurontin? that will help with that. Moving out of the boot is a transition. you are just going to have to find a sandal/shoe that will work for you out of trial and error mine was Birkenstocks. I also had heel problems and bought some of those gel inserts to stick in the bottom of my boot to help me w/ the weight bearing. Just go to the drug store and see what they have to offer maybe to stick on the side of your foot where it hurts, you never know.
Not sure if I've been much help but I hope I have good luck to you you have been thru a lot. let us know how you get a longl CJ