Yeah, I think if your partner has stuck with you through a hospital stay she is really committed to helping you. I think if you can just say "here's what's going on with me" she might be really understanding. That way she doesn't feel like you arnt feeling well because of her it's just other issues that are going on with you. You might call a therapist yourself and ask them if they would see you given your diagnosis. I've been told things by psychologists that other psychologists didn't agree with. So there are different opinions out there regarding therapy.

If talking about this stuff with your partner makes you feel sick or too nervous writing a letter and holding her hand while she reads it might work.