Our dainty queen would never. I honestly think she would explode before she'd let a nurse/doctor disimpact her.It can, sometimes. There is a huge, obvious correlation between obesity and Irritable Bowel Syndrome, especially the constipation subtype (fat people google this all the time, misinterpret the studies and blame their obesity on their gut biome ?). Tons of obese people are chronically constipated because of a garbage diet and zero physical activity, plus they're usually on a bunch of medications that make it worse. Same thing happens to people who are very old, severely disabled or opiate addicts. In these cases the colon does get distended, sometimes to the point of fecal impaction. Obese people who stay relatively active, eat decent food and/or take fiber supplements don't necessarily end up with giant colons but they probably do shit a lot.
Maybe some of Amber's ER visits were for enemas or disimpaction, it's not like she'd ever admit to that. It'd explain some of her "weight losses" too. And if she ever picks up an opiate habit, God help her, she'll be fucking dead of bowel perforation in months.