Guidance with Fearful Nine Year Old

Hi Naomi, I am turning to you to help address a behavioral change we have noticed in our daughter. She has always been a very self assured, confident, outgoing child since babyhood. However, she turned nine this last summer, and recently for the past few months has changed dramatically. She has become incredibly fearful, and reluctant. So much so, that as I leave sight in our home, she will holler out to me to make sure I have not left the inside of our home. I have always worked two days outside of the house and she has begun to tell me how much she would prefer I stay home. She has enjoyed theater, and performances since toddler-hood...I found myself trying to reassure her to join our family to see Stomp, a performance in Seattle. She came, nearly in tears, and thanked me for having her go after the performance was done. She has recently wanted to now exactly what our day will consist of, so as to know my whereabouts, and proximity to her. All these examples are completely out of character for this child. I could expound on changes, but since this is a letter will leave it at those few examples. We have not experienced any major changes in our life style, or home life. No deaths, divorces, moves, nor economic changes. We have not changed our co-sleeping arrangements, diet has remained consistent, we are continuing with unschooling, nor have we added pet, or siblings (she has one six year old brother). I am looking for guidance on how to support her through this, and also I am looking for reassurance that this may be appropriate behaviour for her. We as a family are not looking for mainstream developmental stages just as we are not looking for mainstream academic landmarks. However, I would also not want to miss a learning disabilitly, and am not wanting to miss any possible psychological issues? I am hoping this is a healthy bond. I can continue to give empathy, be close physically, and emotionally for her. However, I am hoping she can continue to grow, explore and enjoy life, in the mode she has for the last nine years. She at this moment does not seem to be enjoying life, and opportunities. I know this is a difficult topic to address through a letter but am hoping you can get a sense of what our concerns are. Also, I hope you get a sense of our willingness to support her, without missing something that could be more serious. Do we adjust our life, to her fears? Staying in her comfort zone, not going out to shows etc, realizing she has a sibling she also maybe affecting? Do we get professional help, consultation? Thank you ahead of time for your response, and thanks again for supporting, and encouraging intuitive parenting...just wish I had more at this moment!!!