I have 4 year old twins who had some sicknesses about 6 weeks ago. My sons strep throat got me sick and i got a lingering cough from it. I was given amoxicillin 500mg 2x day for 10 days. The cough is now a 1 on a scale of 1-10. my experience is that i cannot get the oxygen through my nose that i need when i breathe or that my lungs are possibly tight. i have hx of hay fever as a child. i am 40 years old and smoked cigars in my 30s. i haven t smoked in 6 months. I ve never had breathing issues. no drug/alchohol hx with exception of cigars.