I had a similar incident 2 months ago, a tread and I think I broke a metatarsal. It was still weight-bearing, and TBH as long as I didn’t touch it the pain was negligible. If touched it was very ouchy, even the water against it when swimming was unpleasant.
It seemed to get better, but I too have noticed that lately it is sensitive and has some reddening come back. I am interested as to what they do with yours as my GP is so unapproachable, and I am not sure anything really can be done (I would not have an operation or anything) so I have not investigated further.