Quite possible. I know a veterinarian who had 'em both feet (he's on his feet half the day in surgery) - same symptoms. Don't recall what he did about them, but he's still doing surgeries....

Hey.... I lost 30.... (So THAT'S where it went!....)

Seriously, congrats on kicking. Stick with it. The extra weight should be temporary as your metabolism adjusts, but may take some similar determination to drop. Smaller portions & walking sound right (once you've dealt with this heel issue).

Between the PN & my spine, I've slowed down a lot too. Gotta keep asking the better half what her hurry is, and I have had to adopt a cane for support & balance. Did a ton of walking over the past two weeks and my dogs are still barking, but it's the PN. This time I forwent the wheelchair at the airports, but we had the time to make flights at my speed.

In my case the cane does help quicken me a bit, but.... y'know....
If you do go that way, do a little homework - there's a lot out there in style & technology. I've got a Fritz handle but there are at least a half dozen others. Weight shouldn't be a problem. Most canes are built for up to 300 lbs., and if you need more, most mfrs can accommodate.

Doc