I had a thoracentesis that was excruciatingly painful. After they pulled out about 700 ml, it felt like I was having a heart attack. I was crying and think I even screamed for help. All my nurse friends tried to assure me beforehand that it would be quick and easy. I know from my 15 years as a nurse that this procedure is supposed to be easy with little pain but that wasn't the case with me. They stopped the procedure because I was screaming. After it was done I asked if they got it all to which I was told yes but they didn't. I have cancer in my lung and need radiation but they won't start until this fluid is gone so looks like I have to go through this horror again. Does anyone know why this procedure would be so painful? The nurse at the hospital said it wouldn't be so bad next time because I'd know what to expect and wouldn't be so nervous. She obviously doesn't believe I was in real pain because I am more scared now. The only thing I can think of as to why this was so painful for me is that I have some broken ribs from coughing that I normally don't feel. I seem to be different from most people. Procedures that hurt other people I sail through. I have searched the Internet trying to figure out why this was so painful for me but can't find anything except for some videos of people having it done as if it were nothing. If anyone has any insight please let me know. Thanks