I have no idea what is wrong with your ankle, but why the resistance to orthotics? I've been wearing them for years and it's not that big of a deal unless you want to wear flip-flops all of the time. The biggest difficulty that I've run into is finding dress shoes and work boots that are "tall" enough to accommodate the orthos w/o being so long that they are too big for your feet.
I've had many issues with my feet over the years and the biggest thing is to find a doctor that knows what he's doing. I delayed in seeing a Dr for too long, and then I ended up seeing two guys that were way off base. Sad for me.
My recommendation is to go to a running shoe store (a local business that just sells running shoes if possible) and ask the people working there if they have any podiatrist recommendations. Running freaks either have had problems or know of someone that has had problems.