.I have been on Lisinopril for 3 months within 4 weeks I had severe stomach problems with a urinary tract infection, I thought I was having a kidney stone I went through numerous tests and I received a scope up the penis looking for stones nothing was found, Iwas taking Cipro & Flagyl for the UI and eventually I get better now here it is again same symptoms with a severe stomach lower abdomen problems the only thing that has changed in my life is the Lisinopril, starting today I will not take it anymore.