The New Years resolution is going to be blown soon

I've been trying to keep a running total of 70,000 steps per week, thru today I've succeeded. I'm going to have to let it lapse. My foot pain is getting to the point that standing up after sitting for a while causes the leg to collapse. If I get walking I can keep going because the pain is regular. I'm hoping whatever it is will resolve in a week or two, then I'll take the walking up again.