Honestly I'm surprised they didn't use this as an example in the movie. The mom seems to drink every night and especially during high stress situations which is indictive to a coping skill in addiction. They could have really used this as an example in the movie for the daughter to call the mom out as well and them to both get help.
Its not ALWAYS about the addict that's obvious but also the ones who dont see it as a problem....
0:13:52 - a woman vomits in the dorm at the detox facility. You can hear her and see her bent over the side of the bed but cannot see the vomit itself. It only lasts about 5-10 seconds. 1:29:50 - Molly vomits while standing next to her mom’s car after getting the shot, preceded by mom asking “wanna grab some breakfast?” 1:31:25 - Molly vomits again in the emergency room, first time is preceded by Molly saying “please make it stop”, second time occurs shortly afterwards, it’s over by 1:31:50 when mom says “I can’t fucking believe this” to the person at the desk