Sloshing sound and feeling in one breast 3 weeks post Natrelle silicone implant with lift. Is it leaking?

I am exactly 3 weeks post-op today for breast aug and lift under the muscle. I have Natrelle silicone, 338 cc. Since surgery, the side of the right breast is very painful, almost feels like a bruise. Today, I hear and feel a sloshing sensation in right breast only, which I did hear/feel the night I got home from surgery, but not since then. Concerned something is leaking. Called doc but he's in surgery today.