Can you arrange some structured social time for your daughter? Does she have peer time being homeschooled? Is there a homeschooling support group in your area? From what you have talked about here and in another post, it sounds like you and your daughter are inseparable. That's not always the best for a child, even one with disabilities like your daughter's. She needs some practice being with other children without you around. She could be picking up sublime messages from you about your concerns for her, as well as issues from the books she reads.
Even with homeschooling, is she getting OT and other therapy for her issues? Some roleplaying during these sessions could really help.