First of all - you don't need to ask anyone's permission whether you should or shouldn't have numerous projects started.
Second - if there is something wrong loving the design process and having a bunch of projects going at once, they better throw me in jail!!
Others may have mentioned these terms, all of which apply to my sewing room:
PIG'S - Projects In Grocery Sacks
UFO'S - Unfinished Objects
WIP'S - Works In Progress
I am the embarrassed owner of several of the above!!
Welcome to the club...