 [ Symptoms ] what feels just like a urinary track infection but is not  i am 59 have ra and am on metho enbrel folic acid and fish oil i could swear i have a uti but urine culture negative  what else could cause urinary frequency discomfort [ Disease ] hi and thank you for posting to question doctors com in my opinion belly button pain is caused by upper gi inflammation and esophagitis drink plenty of water and stick to a healthy stomach diet have you been diagnosed with hiatal hernia ever