Has anyone had these? What are the symtoms? What about acid reflux symptoms? My chest feels like someone is sitting on me and has felt that way for three days. HELP!

You ask too many questions that require long answers.

Tylosis is the formation of a callus. No big deal. Are you certain this is what you meant?

Esohageal cancer is associated with heavy drinking, smoking (especially smoking and drinking together), achalasia, Plummer-Vinson syndrome and Barrett's esophagus. No symptoms in the early stages but in later stages there's painful dysphagia (difficulty swallowing), anorexia (loss of appetite), weight loss, regurgitation (vomiting), swollen, painful neck glands and sometimes a persistent cough. Left vocal paralysis and hemoptysis (coughing up blood) suggest an advanced stage. This form of cancer metastisizes quickly and has a poor prognosis.

GERD (Gastroesophageal Reflux disease) is a backflow (reflux) of stomach contents back into the esophagus. The gastric juices in the contents are highly acidic and burn. Chronic episodes can cause esophagitis, stricture, erosion and subsequent ulceration, Candidiasis (yeast infection), esophageal varices (varicose veins), esophageal bleeds, and esophageal cancer.

What you are describing, the feeling that someone is sitting on your chest, is atypical of a callus formation(tylosis) or of GERD. It's not necessarily an MI (myocardial infarction -- heart attack) either. I strongly recommend that you see your health care provider for further evaluation. And don't delay.