I'll use molybdenum for headaches sometimes, and it does help sometimes (depends on the cause of the headache). It helps for headaches caused from yeast. With your yeast sensitivities, I wonder how you would react to this one?
I first took molybdenum the day after my first dose of saccromyces boullardi, as I had awful die off symptoms that felt like heavy metals got released in my head. I remember immediately getting leg twitches and jerks after taking it (LOL). Freaked me out. Later I started taking it nightly along with other supplements Klinghardt recommends for KPU and heavy metal support.
After that first time, I don't remember having any noticeable reaction to molybdenum.