Dropped 10lbs from virus...32 weeks

So, I am getting over the worst stomach virus I've had in a long time. I basically lost 10 pounds in 3 days, which I can tell is mostly water weight since I am no longer swollen anywhere. Has this ever happened to anyone and did your doctor suggest anything about it? I pretty much have gained enough weight for this pregnancy and don't think it should be an issue, but just wondering if anyone else had to deal with it.