I started 7 days ago with movicol to soften my stool. if i dont drink a laxative i get constipated, and dont poop for 4-6 days. within those days i will get stabbing pains on my side just above the hip?

In-person exam helps: One with constipation needs to be sure there is no other disease causing it. If constipation is just due to slow movement of the food and poop through the gut, some people try vegetables, water, prune juice, prunes, fiber-plus-water, Miralax (polyethylene glycol), Senokot or other senna, milk of magnesia, other laxatives... A doctor can examine in-person and prescribe helpful meds as needed.