I've been on benzos and dealt with AF. However, mine answer is pointing more to a health condition now. Not sure which and what medications may predispose a person. I know many anti-convulsants, anti-depressants and so forth can cause digestive issues.
I looked a bit and saw a few posts here:
http://www.benzobuddies.org/forum/index ... ic=50516.0My thoughts would be that withdrawal is very stressful physically and emotionally. I am a firm believer in that emotional/physical stress can play a direct role in fissures.
Also be sure to use the search feature on the top right to check. Perhaps others have had a similar experience in the past.