I started to get pain in my left side a week ago, I had 2/3 days of the runs then this pain ever since, I am quite windy but going everyday to the toilet. The pain is top to bottom left side but seems to sit in the lower part and ache!! I am petrified it's a tumour or cancer. I had a colonoscopy in 2011 and was told I have ibs. But would a flare last a week and why is the pain still there if I'm not constipated etc 😩