Shave the chin hairs every morning in the shower. It's the easiest way. I was a blonde, too, with silver around the temples, until my 50's. Suddenly my hair turned BLACK, except for the silver around my face. Now I'm two-toned. I'm unique. For weight, try eating smaller helpings. Keep trying to find out what's wrong. I was sick for a year with doctors telling me it was all in my head. It was. It was low serotonin levels that required a specific antidepressant. Keep fighting until you get answers and a cure. By the way, I'm 70. The new 50's?