Bowel gurgling

I’ve had alternating diarrhoea and constipation for the past 25 days. Started out as nothing but diarrhoea for the intitial 7 days and then trended towards constipation. I’m scheduled for a colonoscopy in 4 days, so I’m not looking for medical advice, just anyone with a similar experience or information. One thing that has been a constant throughout this ordeal are loud bowel noises (gurgling, whining, etc) that seem to be most active late-night into the early morning. It’s still happening during the day but seems to be hyperactive during these overnight hours. Has anyone experienced this and if so what was the resolution? Any help is appreciated.