Hello, I Had A Gastroscopy 5 Days Ago. My Stomach

Hello,
I had a gastroscopy 5 days ago. My stomach was sore for several days, and I had a feeling of nausea and bile in the back of my throat. Those symptoms have calmed down however, now the stomach is sore if I press on it or exert myself (i.e. carrying something like two hardcover cook books for example, so not that heavy). I have a sensation of thickness/frog in my throat and in my chest, after lifting yesterday, which has not gone away and had food stick in my throat last night. Today my stomach looks swollen. I have no blood in my stool, fever or severe pain. Will the throat sensation/food sticking pass? Why is my stomach looking swollent? Are these normal responses and I am just still healing? I am an otherwise very healthy 49 year old woman.