Worried sis is an alcoholic - don't know what to do

[Sevillemarmalade]

I would be very grateful for some advice as it has just dawned on me and I'm kind of in shock. My reasons for suspecting alcohol abuse are

becoming isolated from family
strange behaviour, as though she has forgotten how to interact socially
very secretive about her life
husband heavy drinker

She has barely been in contact for 4 years and I had assumed it was because I have 2 young babies and she and her DH don't want children. A recent visit where she arrived with 3 bottles of cheap wine, which she opened the instant she got through the door, has caused me to rethink. I'm really worried. If anyone can tell me more about this or if you have been in similar situations I'd really appreciate it.
Also, if this is normal Sat night behaviour then please put me right! I haven't drunk much since babies born.

Thanks for reading.

talk to her?! ask her how she is. tell her you're worried about her?

Thank you oldqueenie - I really want to but I'm scared. To go into a bit more detail, she is incredibly prickly and evasive. About a year ago I was getting concerned she never talked to me or visited (she'd ignored a text invitation to stay at my house and never replied) and I got the most furious response - she told me all was fine, she didn't need anyone in her life and threatened never to speak to me again if I told our mum (who was also worried about her behaviour) anything about the conversation.

She is terrifically hard work. I must admit also that part of me doesn't want the responsibility of dealing with any fall out if I raise the subject, which I know sounds cowardly, but it's true.

well..... you can only let her know you are interested in her and in having a relationship with her... keep in contact and issue invitations.... the rest is up to her really?

Thank you for advice - will keep trying. I know that I can't live her life and she is a grown up. x