Thank you. I have had a cough for 4 and 1/2 years. I have been to several doctors and had several test done. They checked my Thyroid, put a tube down my nose for 24 hours and monitored when I ate, drank, and was at rest. One doctor said that I needed to have surgery on my esophagus and then another doctor tells me that it is the cancer med that I take for my breast cancer that I need to take for 1 and 1/2 years more. Another doctor said it is allergies and puts me on shots and pills. I does not help. I cough so hard I through up, and I sometimes feel like I am going to pass out. They have done chest x-rays, blood work, and ultra sound on my thyroid and they did not find any thing yet. Is there any thing that I can do or any test that I can ask the doctors to run on me.