I Broke My Left Ankle 3 Weeks Ago And A

I broke my left ankle 3 weeks ago and a week after had a plate and screws put in. In the past few days I've been getting minor cramps in my calf and the opposite side of my foot from the fracture. I also sometimes feel almost a burning cooling achy pain like I put icy hot on it. I drink water almost all day. I do have some soda but by far more water. I've increased it since the cramps but doesn't help they're more frequently now. Is this normal?