Sort of! Breathing, cooking, clothes drying etc., will create warm, moist air. No matter what you do this moisture will find the coldest surface and settle on it creating condensation. Even in brand new double glazing (such as mine) you are likely to see some moisture settle. Ventilation helps a lot but it is not a 100% prevention.
As you have what may be aluminium frames these will attract their own share of condensation, compared with UPVC.
Carry on breathing, passionately or not, open a window, replace your windows with UPVC, or simply mop up.