@induh66
A bronchoscope isn't any thing to dread...try not to worry. I have had probably 5 now. My Doctor has used them as a wash for me beside to get sputum samples. I also consider myself an anxious person. You are well sedated and don't really feel anything in your throat. For me I felt the liquid swishing in my lungs but wasn't really uncomfortable. I think my Dr uses more liquid because it's a wash for me. I have asthma and my bronchial tree has become blocked. I usually feel much better afterwards in my case because it opens my bronchial passages. Others on the forum will probably chime in on their experiences.
Best wishes!