Thank you for the advice, LaMa.
I don't like to sound like I'm whining, but if you've ever heard anything about the U.S. health care system being terrible, it's all true. I have several friends with medical conditions who refuse to go to the doctor just because it would put their family into debt. We're still fighting with the insurance company over the birth of my younger daughter last November. If I had to choose between getting my foot looked at or feeding my children, they're always going to win out.
I didn't really consider losing weight as being a factor at all. I always automatically assumed that less pressure on the muscles, bones and joints would be all positive but I suppose the body does need time to catch up to all of the changes.
And you're right about the walking. I had gone from 7,000 steps a day to 10,000 and I was exercising 7 days a week. Maybe I ought to scale it back for a while. I may be getting ahead of what my body is ready to do.
I'll save that video and maybe stretch more before I start exercising. Admittedly, I wasn't doing any stretching or warming up before any of my walks before.