My dysphagia comes and goes. I worry about doing the barium test in a good day. Would it show a result if I don't choke or regurgitate food there?
Your barium swallow (aka esophagram) should unmask any esophageal motility problems, regardless of wether or not you have any symptoms during the procedure.
You should report any symptoms during the test to the radiology tech so they can be documented and timed.
BARIUM SWALLOW XRAY