Has anyone had difficulty swallowing after beginning 6% solution.?

Has anyone had trouble with food getting stuck at the back of their throat on 6% solution. At my last pulmonary appointment, my breathing scores had lowered. He ordered more breathing tests, put me on a 6% solution twice a day, and to exercise more. I’d been on 3% for years with no exacerbations. I exercised more, and put more into the breathing tests and passed all with flying colors. Highest score since I was diagnosed with mild Bronchiectasis. However the 6% solution really irritated my throat, to the extent I have trouble swallowing and eating regular food which gets stuck in the back of my throat, not my esophagus. Only soft food will go down. I stopped the 6% after about 2 weeks and went back to 3%. I nebulize after meals not before. But weeks later I’m still having trouble swallowing. I’ve started Pepsid daily but still can’t eat regular food. Im going to try to get into see my PC this week for a throat check. Any suggestions for those who have gone through this ?
I’m going on a trip in two weeks and want the irritation to heal so I can eat normally. Many thanks