What is this considered? cyber-bullying harassment or stalking?

Asked in Chesapeake, VA - 12 months

I started receiving phone calls from someone using a prank dial app on their smartphone and the same night recieved messages on facebook from a fake profile someone made up, calling me horrid names calling my 8 month old son a bastard "my ugly creation" " that thing i have" "that i should throw him in the weeds because he is a bastard child and that is where he belongs" along with numerous foul names. i was able to learn the identity of the person through friends/family of hers that it was in fact her and that i was not the only victim. she took pictures off of my friends profile of me holding my son and another baby and posted underneath that "she looks like she does (sexual favors) along with my name the city i reside in and offered my phone number upon request. what can i do about this