She lost a lot of weight, per contract, just like most of the old cast.  She's been almost entirely out of acting...and in and out of psych wards and drug rehab.  I know stories about how her first book was written, but I might get someone into trouble if I spilled the beans.  Anyway, she's apparently hilarious and completely bonkers.  She makes her money script doctoring.  Given the amount of drugs, legal and illegal, she's been on, talking about Carrie Fisher's weight is a lot like talking about the weight of a used-up old rocker.  Sure, you can, but the fact that she's alive at all after the shit she's done (and had done to her) is the most impressive thing.  I'm pretty sure that most days she can't actually remember what she ate for breakfast by dinner time.