Sinisipon when giving head

I don't know why pero everytime i give head, 10-15 mins during the sesh hindi na ko makahinga kasi clogged na yung nose ko. Normal lang kaya yun? Like most of the time when giving head ganun yung nangyayari. It's also the reason why hindi ko kaya magpa mouthfuck kasi maya maya need ko na ng hangin lol.