Lil Nas X is giving fans a rare health update ... and by the sounds of it, he's in a much better place after a stint in rehab. The rapper resurfaced on social media Wednesday and revealed he's spent the last several months focusing on himself .... going to rehab, therapy and working with a psychiatrist. Nas also opened up about his bipolar diagnosis ... joking that being bipolar, Black and gay felt like God handed him a particularly challenging set of cards. Still, he says he's doing much