Yes, you should call your doctor and have your son checked out as soon as you can. Is he constipated?? If you are formula feeding, formula usually has added iron, which can constipate. You’ll want to have him checked out for anal fissures (which can happen if he is straining to have a BM several times), and to rule out infections, etc. I haven’t heard of this in relation to CAH, but who knows. Let us know how everything turns out! I’ll keep you both in my prayers! God bless.