I use a humidifier at night because the air in my room gets really dry in the winter. I haven’t had a problem at all!

I woke up this morning and found that my walls are wet! What do I do? It’s not too late to fix it right? Will it leave any marks on the walls?

I have my windows covered with insulation plastic to keep out the cold and I woke up to find them covered in condensation as well.

Please please please help!