I am 25f living with my boyfriend 29m. We had two pet rabbits, one of which I had prior to meeting bf. She is 6 1/2 years old. Our other rabbit we got together. The rabbit we got together  passed away very tragically this past February.  It was absolutely traumatic and heart breaking for me. I now struggle taking care of my 6 1/2 year old rabbit. She's getting older, so with that comes some issues. I worry about her constantly  to the point I feel sick. I have a hard time completing work because I get so anxious thinking about it. I love her dearly and I absolutely  would never rehome her. But this is driving me mad. I give her the best care I possibly  can but its tearing me apart mentally. Does anyone have any advice?