Hi Suz,
Welcome to the site. Sorry that you had to find us all and I’m sorry also to hear about your sister. But I am glad that you have been following the site since your sisters diagnosis, and I am also very glad that you have no joined us all here. I hope that you will post here as there is a ton of support and help for you here, always.
Yes the good days and the bad days, we can all so relate to how that feels. Glad to hear that your sister has responded well to the gem cis and it sounds like she is doing good right now. Long may that continue please!
Please know that we are all here for you. Keep coming back and let us know how your sister gets on. And should you feel like shouting or venting or anything like that then go ahead and do so as well! Plenty of ears here to listen to you who know how you feel and what you are going through!
My best wishes to you and your sister,
Gavin