Oniomania (from Greek onios = "for sale," mania = insanity) is a medical and technical term for the compulsive desire to shop, more commonly referred to as compulsive shopping, compulsive buying, shopping addiction or shopaholism.
Another common version of this syndrome is credit card addiction, also known as compulsive credit card use. All of these are considered to be either clinical addictions or impulse control disorders, depending on the clinical source: First described by Kraepelin in 1915, and then Bleuler in 1924, as oneomania from the Greek oneomai, to buy, included among other pathological and reactive impulses, compulsive buying went largely ignored for nearly sixty years.
...I think I have this.