I don't think my parents understand?

All my life we've moved pretty much constantly. then we stayed in one place for a number of years and I felt like I had a home, I made some very close friends.. And then we moved again, it has been a couple of years but I've not been able to adjust I've actually even developed agoraphobia somehow, and get severe panic attacks, I'm being treated for. But my parents are always talking about moving again and I am just settling in here.. I love this house and I like this new city now, but I'm old enough now to move out myself if I want to but I'm a homebody at heart and with no familiar home to come back to I don't know. I'm so scared I have nightmares about this, I'm so sick of change!! I think one more move might do me in. How do I get my parents to understand? They basically tell me to suck it up (in nicer terms than that)