Hi, thanks for writing to HCM.
From the description, it looks like that you have sustained a fracture
of the metatarsal bones in the foot.
Temporarily this can be managed by
* Keeping the limb in elevation
* Ice compression
* Avoid bearing weight on the foot
* take some analgesic
I suggest to have an xray of the foot to rule out any injury
and approach an orthopedic surgeon for further management. Hope this helps