I too am diagnosed with cirrhosis and it's not something that you're going to want to carry the weight of alone. I'm not sure as to where you're at in the disease (meld score), but in most cases, it does progress and, eventually, you will have to start taking meds (a lot of diuretics) and the jig is gonna be up...unless you convince your family that you're unhealthily obsessed with your weight...teasing, sorry. Emotionally, it is not going to be good for your mental health to retain such a secret. For the entire first year I was obsessed with the dismal thought that my life had been put on a timer. Not being able to speak freely with loved ones about your concerns can send you into a depression, which will only make things worse and make that drink seem more tempting.
Thanksgiving is still two weeks away which is plenty of time for you to tell your family, get their awe out of the way, and make sure that you're restricting your sodium intake at the Thanksgiving feast. I'm sure that you've done your own scavanging for information, but here are a couple of links that will beef up your knowledge about what to expect with progression, but, please
, for your overall wellness you should get this out to your loved ones in one quick, deep breath.