TW - potential eating disorder

I'm here for some advice. I am 29, 5'6, and have sat pretty confortably at 133-137lbs since college. Obviously my weight has fluctuated bevause I've had 2 kids, but I always ended up back at around 135.

In the last couple of months, my appetite has been so poor. Foods I used to love are now disgusting to me, and I find myself skipping meals entirely. I can feel my stomach growling, but the idea of eating disgusts me. I've had to resort to drinking boost shakes. After a few months of this, I've lost ten pounds and am now 125lbs. My husband mentioned it (lovingly) and said he's concerned. He says I look like I'm wasting away. My hips jut out and my clothes are baggy.

I called my doctor but they can't see me for a month. I've had blood tests in the past 6 months (for unrelated things) and they were all normal. Has anyone had this happen? How would a doctor even treat this?