10 weeks after met. orif, still some pain on walking and still swelling. told to walk normally, physio exercises, but swelling esp. a problem. normal?

Possibly : Most metatarsal fractures take about 8 weeks to heal, and after that may still have some degree of recovery for another 6-8 weeks or so. So if you are slowly getting better it seems reasonable to wait it out. If you aren't getting better or certainly if you are getting worse, let your surgeon know. Also avoid nicotine and NSAIDs, both of which slow fracture healing.