Chronic Constipation

I’ve been dealing with constipation for close to 10 years now. I can go days and even up to two weeks without a bowel movement. I’ve been to multiple doctors and they all tell me the same thing. It’s either diet or IBS that should be treated with a certain diet. I’ve tried everything and nothing has helped me be regular. I’m constipated at the moment, I haven’t had a BM in almost a week and a half and it’s starting to hurt. Do you guys have any quick fixes?