Girls, hello everyone! We have an abnormal heat wave. Yesterday I was …

Girls, hello everyone! We have an abnormal heat wave. Yesterday I was at home all day under the air conditioner. By evening, I felt like I was breathing cold air only through my nose, although it wasn't actually cold... now I cough almost to the point of vomiting, sorry for the details??? Because I'm constantly coughing, it seems like it hurts and my stomach is upset? Who has experienced something similar, what did they do? Thanks in advance for your answers ???