some fear

I am so freaking scared today somehow by an email from a professor.... arghhh so scared still. I was email to a professor in regard to a class that i want to get into. however, since i was not able to get a hold of him, i was trying to contact some other faculty members who may be able to help me out with my class schedule. may be it goes back again to the limitation in written communication... I emailed Dr. Nowek, whom i think is the head of the department about how hard it is to contact some instructors. then the instructor kinda scolded me in the email, saying that i should not be expecting instructor's email that soon especially during vacation... but actually i was referring to another email which i sent couple weeks ago. somehow i don't know why but i am always so scared of professors... due to past experience...