I used to suffer with ibs but after coming off birth control pill it improved massively. My stomach has really not been a problem for me recently but I began suffering with horrible anxiety. I have been put on Prozac after Effexor made no difference to my anxiety but in just one week all those old horrible ibs symptoms have come back. Do I have to choose between sick stomach and anxiety? Will these symptoms go away as the medication begins to work? Very hard trying to ride out this settling in period. Any similar reports and improvements appreciated!