What Causes Abdominal Pain And Loose Stools?

Hi, may I answer your health queries right now ? Please type your query here... 6 weeks ago I went to my doctor for what I thought was a kidney infection or stone. We have done urine and blood tests, ultra sound, ct scan, colonoscapy and upper Gi. Through the 6 weeks and tests the pain has localized in my lower left side always but I have had non specific symptoms like really cold feet, headache, blurry vision, foggy thoughts, abdominal burning, left side burning, sore ribs (both sides), fatigue and loose stool these come and go but the lower left abdominal pain is always there. My dog had lepto about a week before this started and I was tested for that but all of the test so far have come back in my favor. Do you have any ideas