how much is your too much though?
and special person refers to someone that is already in a relationship with you or just someone u have a crush on?
i'm sure if it's a gf or bf, she/he wouldnt mind it at all if you call or message them often..*well, just make sure u dont call just to whine or stuff..THAT IS A NUISANCE*
for a crush, well, it is a bother really to keep sending messages..
my experience:
this guy isnt my bf and i like him a lot but was too shy to say it.
he called me first and things started from there on..
well, i have this one theory in my head u see...to not seem too desperate or wanting to message him a lot, i made sure that when i messaged him, i'm the one that said good bye.
and i'll wait for him to start sending me messages after that..
it's like a rotation u see..

i messaged him first, the next time, he'll message me first..and the pattern went on like that..haha..i'm weird like that..
and on those days when he was the one that's supposed to message me first, the waiting feels like hell..literally..but i wouldnt make the first move.
well, at last, our relationship didnt work out..my friends said i was trying too hard to hide the fact that i like him so much that its embarassing, i didnt use the oppurtunities i had before to just get to the point..
soooo~~the conclusion is...if u're not the shy type, just GO FOR IT! message, call, stalk, do whatever it takes so that u wouldnt regret it later on~

i'm serious..well, maybe not the stalking advice..but u know what i mean..