about 6 years ago, I had mono for the second time, and where the first time I had it the most obvious symptom was the WORST sore throat I'd ever had, this time the symptoms were totally different - difficulty breathing, feeling like my throat was closing, and extreme fatigue. It has occurred to me that in the past year, whenever I'm under stress I have the very same throat issue - feels like it is closing, to the point that my voice changes, and it comes on very quickly.