I think it depends on the kind of spell you cast. Like if your not careful with a ouija board, a person may attract the attention of unwanted spirits. But I would ask more senior witch, wizard or warlock because I am also a newbie on this site.
When I cast hexes and curses I attracted and even attached one time negative energies / spirits to me. Now I only do Blessings, Protections, Repelling or Good Luck Spells and do not have this problem. I can feel positive energies / spirits around me. :-)