I feel my nose is constantly blocked and my sinuses get sore.
I was referred to the ENT clinic but they didnt know what it was.
I cant seem to smell anything very well and it feels like muccus is running down the back of my throat. I also have bad breath and dont know if this is linked to it as I brush my teeth and tongue very well.

Can someone please give me some advice as ive been to my doctors and they give me a nasal spray which didnt work.