Hi EE03,
I'm sorry to hear about everything with your poor feet. Getting the right diagnosis can be a real challenge sometimes.
I too had a plantar fibroma. Mine had to be removed twice surgically and I ended up wishing I had known about getting radiation to them before the first procedure. If, heaven forbid, yours starts to grown again there are radiation oncologists who take care of these. I did this after mine came back the third time and had good results.
I saw earlier on this post that you were wearing Birks. Are those still working for you with the fibroma area? My ability to tolerate arch support is completely different with all the scar and such. I have had to try a lot of new things shoe wise to find what works for my re-vamped foot.
My post-op recovery was much longer than probably expected and I still get swelling 18 months out. So hang in there if your surgery was not that long ago and don't overdo.
I hope more healing comes your way.