Aaw Shel, so sorry that Marcus is still coughing. No wonder you had a meltdown! Just being called into the exam room must have put such fear into you, but at least you got the encouraging news about the clear lungs. Your Vet sounds great; she totally did the right thing for you and your baby in suggesting you get a second opinion.
Please keep us updated after your next appointment.
Hugs to both of you,
Lauren