I have always had digestive issues since a child, but nothing of great concern. I have had 3 colonscopies since my fifties. I am 68 Yrs old. But lately i have had back and hip pain, abdominal pain with dark, narrow, sticky stools. I m feeling more fatigue than usual. Lots of gas issues, but that s not new. I have a dr. appt coming next month, but I,m getting concerned. Any ideas???