My voice comes and goes, with no apparent cause(s). I ve tried eliminating what might be causative factors such as some of my vitamins, herbs, almonds, and some foods (none of which have caused issues in the past), but to no avail. I don t have a fever or an infection, and my neck lymph nodes are not swollen. Additionally, I have no pain and no cough. The only way I can speak and project my voice is when I speak in higher ranges...almost Mickey Mouse-like. Any thoughts?