I’ve had chronic constipation most my life but then add in a rare vascular compression that also affects my digestive system. It’s been a constant battle. I haven’t helped my tortuous colon by having to strain when going. I finally found something that works. It’s called Lactulose. It’s a prescription syrup and it hasn’t failed me yet. I have tried everything else but so far this hasn’t failed even after using it for 8 months. I only take it if I don’t go for 2 days. I have found that if I keep a handle on it and not let it go for more than three days it works better. I had a G.I. doctor tell me what you have a tortuous colon, you’ll never not have chronic constipation. I’ll show her!!