HI DEAR THANKS FOR YOUR question,your husband on antibiotic for tonsillitis
,is having heart burns and is not eating any thing and has history of lung infection
in past.Dear your husband might be a patient of acid peptic disease
(APD) and is talking antibiotics ,which have aggravated the symptoms The APD may be associated with reflux oesophagitis and even hiatus hernia
that is why he is feeling something stuck in his chest,it is better for him to go for EGD,commonly called as endoscopy
to look for reflux oesophagitis/any ulcer/hiatus hernia and finally rule out malignancy.hope you will be benefited from this answer.