I do wish I could give you better advice... at least wvw asked a Doctor... really Tikal, as much as I feel for you and want to help, I'm afraid that we don't know all the information as your own family and Doctor does. Your sister most likely needs to see your Doctor for any possible changes to her medication and perhaps someone to help her through her grief. But time will also help that... after all, this sad loss only occurred relatively recently.
You could always think of beginning your own support group. It's a lot of work, but others will help.
*biggest hugs* I hope that things improve for you all.
*grinnie just for you*
