What Causes Soft Bulge In Foot After Fracture Of The Navicular Bone?

I have a closed fracture of the navicular bone in my right foot and a 5th metatarsal fracture (I'm a ballet dancer, en pointe) and a sprain of the posterior tibial tendon, its been a week and a half and now I have a small "soft" bulge in my arch slightly towards the heel. The pain is like a stabbing, burning, sharp pain, my Ortho is on vacation so I was wondering what this could possibly best to worst scenario's so I know which of his associates to speak to. Thanks.