OMGG do i have OCD? HELP ME!?

lets just say i didn't have the best child hood. my dad is a very f**ked up person in the mind, he took lots of drugs and has weird promblems and OCD. i don't like him. anyway. so ermm.. i was wondering.. i think i have it? I like never touch door handles or hospital lift ons or anything i always cover my hand with something.. but i do this because i have a phobia of vomiting so i don't want to catch a stomach bug which LEADS TO VOMITING. so i don't know if it actually is OCD. i think i am just paranoid. i really hope i do NOT have it. what are the symptoms? my mum took morphine and herione and smoked when i was a baby too, so yeah i think im retarted. anyway this is not cool help me!