Dull aching pain in leg after BBL, what could this be?

I had a BBL 7 days ago. I am in Miami for 4 more days and I am from Canada. I go see PS tomorrow but I was wondering if you could shed some light in what this could be. It hurts worse when I walk, I walked for 2 hrs yesterday and thats when I really started feeling it. Its a dull to the bone type of ache. It is in my hip/thigh are on my left leg. I have a drain located there but its deeper and aches down the thigh a little. Thanks