Hello. My name is Fergus and I have a shopping addiction. It's similar to "compulsive buying disorder" and "oniomania." It's essentially a disorder of impulse control
Oh wow!  What's the craziest thing you've ever bought?
One time I bought this huge bear with really, really long legs. I couldn't control myself. My urge to possess the bear was overwhelming. 
Lol.  Like one of those ones you get a fair if you win the best prize?  I've always wanted one of those!
No, it was a beautiful ice coloured bear I found on Amazon. You may enjoy browsing Amazon, but for me shopping is an obsessive and uncontrolled activity. It interferes with my normal development of life. But now I have this beautiful bear.
Excuse me I meant "one of those ones you get AT a fair..."  Apologies!  Well, at least you have your bear!  I feel like as long as you buy what you want and it satisfies your need and you can still pay your bills...  It's ok!
Shopping addiction
Shopping addiction is defined as the deficiency of impulse control which appears as the eagerness for constantly making new purchases of unnecessary or superfluous things. It is a concept similar to "compulsive buying disorder" and "oniomania", although these terms usually have a more clinical approach, related to a psychological individual disorder of impulse control. The phrase “shopping addiction” usually has a more psychosocial perspective . or it is placed among drug-free addictions like the addiction to gambling, Internet, or video-games.
Compulsive buying disorder
Compulsive buying disorder (CBD), or oniomania (from Greek ὤνιος "ṓnios" "for sale" and μανία "manía" "insanity"), is characterized by an obsession with shopping and buying behavior that causes adverse consequences. According to Kellett and Bolton, compulsive buying "is experienced as an irresistible–uncontrollable urge, resulting in excessive, expensive and time-consuming retail activity [that is] typically prompted by negative affectivity" and results in "gross social, personal and/or financial difficulties"