Wow, what a quick jump to pathologize someone's behavior based on some pattern you spotted that bares some resemblance to a mental disorder. Psychiatry is not an exact science, and this labelling does more harm than good when used out of context. A person can be classified with a mental disorder _only_ when that behavior starts having negative effects to their lives, and not merely by satisfying some of the symptoms. Someone can act hypomanic or depressed and that can fluctuate through their life but until that starts having severe negative effects that they can't escape from on their own, it is simply the expression of their character and their uniqueness as a human being, rich and complex. Otherwise you can classify with a mental disorder pretty much everyone.