Drafts behave in a different way from raw wind. Indoors, sitting in front of an open window is very sickening for me. Immediate symptoms include sore throat, mucus, dizziness, eventually progressing to intestinal spams, headaches, fever, etc. When the wind enters a home, it "creeps" to an exit, usually another window. This effect also enables it to sweep across the body in a more severe way. My apartment has the unfortunate combination of east and west windows, being very poorly built and failing to seal out incoming drafts. The wind won't hurt me outdoors, but in the same weather, sitting indoors with an open window will make me ill. Talking about how complex drafts are and how they can hurt someone here will make one look crazy, but it's common knowledge in other parts of the world. A search led me to this forum. That thread quickly demonstrates the ignorance of the general populace, and how they will dismiss the symptoms of others unless they experience it themselves.