Don't worry about ignorant doctors laughing at you. There's plenty of them. I once asked about candida and a head doctor at a tropical disease center laughed at me, I think many doctors now are beginning to recognise it.
My favorite quote: I dislocate my shoulder. Dr, says he can't really do anything for it, mabey some pain killers, asks how my stomache is. "I'm beginning to get a stomache ulser," I say. "Well, be careful, these cause stomache ulsers," he says handing me the perscription.