I had the same thing happen to me 3 weeks ago they added .5 cc and I was fine for about a week and then I got super tight and anything thicker than water would come up. I went in today and they took out the .5 cc and they did a barium too just to make sure everything was alright, it was horrible though because I couldnt eat anything and I was misserable. I feel so relieved now that they took out that .5 cc. Now I am just worried that it will be to loose.