Ok so that sounds like the beginning of the 1950’s “Duck and Cover” video but when you are painting there things that would surprise you about painting your home. First do you know the types of paint and could they have elements you are allergic to? Some people have allergies to certain types of paints and finishes so if you are doing this project yourself be sure to talk to someone that knows about paint not someone just covering for the paint department that day.
Next is making sure you have proper ventilation and air filtration. People have been known to get sick and pass out due to fumes.