Hi and welcome to the board. I am glad you are reaching out for help and even more glad that you found help here because we get it. You are not alone. All of us on this board are dealing with a family member with BPD or BPD traits, mostly parents or siblings. Sometimes both.
I can't say that your sisters behavior of cutting you off is typical but it is not uncommon. It is very painful and difficult when a loved one cuts us out and I am so sorry you are dealing with this on top of having health problems. How is your health now?
It's been a year and a half that I live near her. Any suggestions?
Suggestion regarding what? Are you hoping to resume contact with her or are you looking for coping strategies for yourself or is it something else? Regardless, we can support you as you navigate your way through your situation. You don't have to do this alone any more.