Nothing like a short haircut in the summer to make you feel light and sassy. I'm sure it will be relaxing to be at your parents' house and with D4 again. I miss her when you're not with her too. The visit to the Dr. sounds like it went well. You know, I've found sometimes simply NOT thinking about things is an improvement. Take some time to just relax, spend time with your family and enjoy life. Your problems will always be waiting for you when you get back. No point in dragging them everywhere you go! And since really, your problem is not your problem, it's your husband's problem, there's nothing you can do to fix it anyway.
