I'm on day 20 of still feeling pretty tired despite 8-9 hours of sleep a night. I still haven't resumed my normal vigorous level of exercise. Yesterday, while at the acupuncture doc's, a mom was there with her two boys. Both were obnviously very sick - coughing the phlegmy cough the whole time and not cvoering their mouth. I was in the waiting room with them for way too long. Today I feel like crap. Is it possible to get it back again? I haven't read or heard of that happening, and hope this is just a bad allergy day.