Thanks for your reply - I truly appreciate it. My son has complained many times of headaches and stomache aches . Although I have never missed a dose, I have given it to him late a few times (for unavoidable reasons). He also gets moody very easily - I sometimes call him Oscar the grouch (Sesame Street) :) I cant believe how irritable he can get for the sillyest things. Do you find that to be a common symptom of CAH?