I feel stupid and this is off-topic, but I'm scared to post over on the DISabilities board.

I figured I'd bounce this off you guys and hopefully get some opinions.
I was forced to rent a wheelchair last year at
Disneyland because of my feet. I've been in physical therapy for plantar fasciitis, and they told me that I could resume normal activities, but I worked at the Renaissance Festival this weekend, and now I don't think I can treat WDW as "normal". The pain on Saturday was tolerable, but I was barely able to walk on Sunday and spent most of the day sitting on the thrones while the royal court was away. I wore my special shoes with their special insoles! I spent most of yesterday off my feet, but today they're *still* significantly swollen. I can't seem to get the swelling to go down, and I've taken over-the-counter medication. I don't want to get a wheelchair, but am I deluding myself? I know I'm fat, and I know that's a big factor, but I swear that I'm trying to get more active and lose weight. Would it be wrong of me to rent a wheelchair? Should I try to tough it out? It's such an expensive vacation, I hate to spoil it with my inability to keep up.
Thanks for listening, guys.