with some of my patients who are also undergoing fertility drug treatment, they often present tongues that go counter to their symtoms (e.g. clearly Kidney Yang xu patients with bright red tongues). I'm wondering if the effect of the fertility drugs on their systems changes the tongue (and the pulse for that matter)? It often clouds what I believe to be a clear cut pattern diagnosis. Should caution be used when taking the tongue and pulse into account in these cases?