Left Gastroc

I was kicked from behind by a trained martial arts black belt.
The kick to my left calf measures a 4″ dent horizontaly across.
It has been 6 weeks and I still have pain.
I walk with a limp and cannot index off my big toe when walking.
I have been in therapy 3 times a week.
I stretch and do my band excersises.
I noticed a pop in my keft calf when doing toe rise excersises.
I felt a sharp pain and it swelled immediately. Does this type of injurt ever heal.
I am worried about the dent in my calf.