I’m afraid she’ll probably end up in the ER before she sees anyone, but I’ll keep trying. She lives in a bordering state so is not close to me so it is more difficult. I never thought about dehydration. That could be really bad. Thanks for the advice!

this will need to be resolved. She probably avoids food, so this is why she is losing weight. She can be also dehydrated. Her colon is probably full of stool and from here the pain. A gastroenterologist can irrigate her colon and that can help. There are other dangers than colon bursting (not likely), like dehydration, malnutrition, vitamin and mineral deficiency. She should also need to get advice about appropriate diet and, eventually, she will need some tests to determine a cause of constipation.

If laxatives have not worked so far, she will hardly resolve this on her own.

any bleeding from the rectum is considered as emergency situation. Pediatrist may order stool or othr test and decide if she needs to see a gastroenterologist.

For how long are you constipated – from childhood? From what reason have you started to take pain medications? Have you had any test, like X-ray with barrium enema or colonoscopy?

Are you physically active, drink enough of water and eat enough of high-fiber food?