My scarlet cyclamen is drooping!! HELP!!?

I obtained a scarlet cyclamen plant early november, and have watered it regularly ever since. It sits on a window sill and has a pretty good amount of sunlight. Although there is a slight cold draft that comes in, there is also a heater right below the window, so the temperature should be just fine. I also spray it and keep it nice and moist about once a week. Last week, a lot of flowers came up, and it was really healthy. However, in the course of just one day, everything has drooped to the sides! It was a bit dry, so I watered it, but I'm not sure what to exactly do! HELP!