I am 7 months pregnant, & having alot difficulty to breathe. Its 90 degrees everyday, usually breathing problem happens when I turn on fan or AC, but I can't live without them coz its hot here. When I turn on fan my nose is gets blocked, my throat get mucus, & my eyes start tears coz I yawn hard to breathe. Its getting worse, any ideas why it is? & wht to do to cure?