The company is seeing a sales slowdown and is reeling from a report from the "Wall Street Journal" over misleading marketing.Shares of Celsius Holdings (CELH -2.37%) fell 16% this week, according to data from S&P Global Market Intelligence. The upstart energy drink brand is facing a slowdown after a few years of monster revenue growth, and recently had a concerning report from the Wall Street Journal over its marketing practices. Nearly in a 50% drawdown, investors have suffered in Celsius stock this year, ...