Hey all... so a brief background on my bully is this. Had the soft palate surgery when he was 1 after he aspirated his food and got pneumonia. Fast forward to 6 yers old.. i recently gone to a allergist and we switched his food to purina pro plan ha due to the fact hes allergic to almost everything (itching much better) BUT iv noticed hes been burping up alot lately.. i wanna say its coiniciding with whej i switched food to purina pro plan but im not certain. So 1 month ago he aspirated his food again and had to be on anti biotics...i chalked it up to ok well he was aspiration free for 5 years so no big deal.... now last night he was coughing and vet dignosed him with bronchitis. Im starting to think the new food is making him burp up his food and causing the esophogus to get enflamed from the acidity from the food and also puts him in danger of aspirating food or water. Any thoughts? Thanks