Thanks mich.
Your beautiful words bring a tear to my eye. I know how you feel with your sister. Mine is currently facebooking every day about how hard her life is because she is moving to new town to be with her partner. I love her dearly but sometimes I just wanna say "who gives a toss! At least you don't have cancer!" I just skim over her stuff now, maybe you should do that with your sisters emails? Don't read them when you feel crap!
Another way to look at it when you feel crap is to think if it makes you feel so bad then it's doing it's job! It will get better. Day by day. Keep your chin up chicken I am here for you also xxx