I've had my girl Isabell for her whole life, since I was ten (I'm almost 19 now) and she has had very minimal health issues in her life. She's had two eye problems (infection and ulcer) and she was spayed around three years ago with a lot of trouble getting back on her feet a month or so after that. Recently I've noticed she's lost weight, she used to be overweight (around 6 pounds) and now she weighs only 2 pounds... She is still eating and drinking like normal and is not showing any signs of other illnesses. She does not exercise hardly at all and I don't know how to coax her to move around more to gain muscle. Any ideas on how to put some weight back on her and maybe build muscle? I also have a male rabbit that is only three years old (neutered) and he gets nervous when I or Isabell leave him, he has to have one of us or he'll get really scared, so he gives Isabell a lot of company but I still don't know how to exercise them. Any ideas on anything I said will be very helpful!