It looks like she’s been busy bunstructing newspaper? Her resting position looks relaxed. The left leg isnt straight, I dont know if it’s always crooked or if it just happened to be like that when your dad took the picture? Anyway, an unhappy rabbit wouldnt rest in that position. From what I can see, her weight seems healthy.

It could be that she feels unsafe on the bare floor now when she’s blind. But all in all, from your description she sounds like a happy older lady who enjoys life even though she’s not bouncing around like she did when she was younger. It’s lovely that she likes it when you’re playing guitar 💚

I think it looks like you’re taking very good care of her. Enrichment for her could perhaps be to add some other kind of hay (buy a small bag in case she doesnt like it), for some variation. And more stuff to bunstruct if thqt’s what she likes to do. Nothing expensive obv, just cardboard box houses etc. I’m guessing you’re already giving her that kind of stuff though.

Why is she making you lose your mind?

Flooring is definitely key for rabbits who cannot see so they can feel secure. Keeping the floor somewhat clear and having things consistent can also be important. As Bam asked, what has been bothering you specifically?

Yes, the flooring is going to be what she is familiar with and, therefore, what makes her feel secure. For fun, could you make a trail of mat pieces that leads out of the pen and over to you? She might be more willing to explore if the flooring feels the same.

I agree that she looks happy. As bunnies grow older, we have to make adjustments. We can’t expect them to do all of the things they used to do. They narrow their focus on what is interesting to them. It doesn’t mean they are bored or unhappy, necessarily.