I had an endoscopy on Wednesday. The next day I noticed I had a sore throat. Friday afternoon I got a headache that gets better with medication but comes back after the medication wears off. I have a lot of mucus and go into coughing fits. I also have wheezing when I lay down. I have some chest pain which feels worse if I take deep breaths that also brings on the coughing. My question is do you think this is related to,the endoscopy. The reason for endoscopy is a large hiatal hernia that has pushed my stomach into my diaphragm.