Wow - I read Kinky Gerbils post and was about to post exactly what you put, but probably not so eloquently.
Thank you for having understanding as to the impossible position some of us are in...
Who has said you are not in a difficult situation?
Why is your situation anymore difficult as those facing other illnesses/mental health/domestic abuse issues.
You are being as selfish for your own needs as those you claim are being selfish.