This may be a little late on the reply, but this is absolutely normal.
Personal experience: When I first started seeing changes in my body after beginning to lose weight, I was happy of course, but I quickly came to realize that, yeah, I was
changing. I was already looking different from my mental picture of myself, and I realized on a primal level that if I continued to lose weight, I was going to have to make changes to how I see myself and even to my self-identity.
Even though in principle, making those changes are the very reasons we're trying to lose weight, it's scary to think of just how much is going to change. I don't know if that's specifically what you're going through, but I want you to know that this is not something that you're alone in. Try googling "phantom fat" for some of the full, dramatic effects people have psychologically when they lose weight. The important thing here is to accept yourself for who you are, and if losing weight is something you're committed to, to keep going even when it's tough. You can do it.
