Mom had cancer & Dad just died

Approximatly a month ago, I found out my Mom had pancrease cancer.  The doctors were able to remove her pancrease and got all of the cancer.  Since then she has had complications from the surgery and is still in the hospital.  She has lost so much weight that she looks like a shell of her former self but "Thank God" she is still alive.  Unfortunately the very same day that my Mom was having surgery, I found out that my Dad had lung cancer.  They gave him six months to live....he died in six days.  I feel so stressed out, depressed and anxious and I am having anxiety attacks again which keep me up at night so I am usually very tired every day.  Every since my brother died (Jan 12,2007) things in my life has been EXTREMELY difficult.