I dont think this (hating hearing them breathe/sneeze/cough...) has a chance to improve until i'll move out. i think this feels exaggerated by the annoyance of having to acknowledge the presence of my parents at home.... then... maybe could get better?
but still, i hate hearing my cat breathe, so i dont know????

as for touch, i do not mind contact with animals, actually i like to hug my cat! instead, hugs really bother me with humans, unless i really feel like it too. if i dont feel like hugging, i let them hug me but i do not reciprocate it... i just let them do it and i even feel magnanimous in letting them (mostly my mom/brother) hug me.