Its that weather change season, have you turned the heat on in your house as sounds like dry hot air symtoms.
It sounds like an allergy to me. Have you started a new medication or using a new product you haven't had or eating something new? It would be good for you to see a doctor. You could try taking benedryl at night and Zytec during the day for a couple of days to see if it helps. I would say you have a virus but usually when your nose itches it is allergy related.
what do you mean with you can't itch it? scratching doesn't help the itching?
if there's something visible you could consult a dermathologist to have those "bumps" checked out.
how long does the breathing problem last when you wake up? you mean you wake up from not being able to breath?
you should see your Physician and do at least Full Blood Count