I’ve had compartment syndrome after a bad injury. I fell hard on one leg and had a monster hematoma. It caused cellulitis, which was very stubborn to treat. The hematoma had to be removed surgically as it just wouldn’t go away. Then, a year later, I was hit by my own car while driving my pony next to the driveway (pony was OK), and I had another monster hematoma. That one blew out and left a gaping hole. I packed collagen in there for months. As tough as it was, I prefer the version in which the hematoma was surgically removed.
Anyway, I had compartment syndrome from all that, and even though this all started in 2015, I still have a lot of trouble with my legs. I managed to give the other one a hard whack while crashing my bike. I don’t recommend this type of injury! I was told I could lose my leg with the first injury and cellulitis. I didn’t, but it was scary.
If I were you, I’d be raising hell to get this diagnosed and dealt with.