Herbalife Ltd. (NYSE:HLF) stocks took a beating this week after the Federal Trade Commission’s (FTC) probe was made public, and now there is growing concern that state attorneys general will also start their own probes, making life even more difficult for the company. But just as the multi-level marketing firm has an adversary in Pershing Square’s Bill Ackman, it may have an equally motivated ally in Carl Icahn. Herbalife worried that it could a ‘a year of hell’ for shareholders “They are worried about state attorney generals [sic] coming in there and launching piggyback probes off this. It’s a huge…