feel nauseous when air conditioning system is turned on

I feel sick every time it's turned on inside our car and today I also felt quite nauseous when I used the one in my room. This time (in my room) the window was almost closed. There was just a little gap where the exhaust air hose was sticking out of the window. Usually, when there window is completely open and the exhaust air hose sticks out of the window I don't get nauseous.

The nausea is initial.

Do I feel sick because of a lack of fresh air? What can I do against it?

submitted by /u/ars4l4n
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