I had DS (2yo) and DD(almost 4) Blood tested.. While those came up negative. My daughter has issues being a stopped up. She does go most every day but she usually has pebbles. DS is better as far as his GI tract go, but has some sort of pimple looking bumps on his skin... they are not red around but are hard if you scratch them. I rather believe they both have it after my dx, then Hubby's uncle (mom's bro) had a dx earlier this year. So prompts my question... Endoscopy or no?