When pen hits paper

i can't stop drawing i have so much art. i want to post it on this site but i'm not to sure. see i posted a pice of my work on face book. later on a friend of mine had a printed copy and had it in her house. i took it off the site since i really don't feel comfortable. i want my art out there but not if i don't get the credit. does anyone else have this feeling or am i just beeing totally paranoid.