If you are having nausea and vomiting, then you should go to the hospital. While it's not uncommon for CD's to have chronic constipation - sometimes lasting 7-14 days - if there's vomiting going on, then you need medical attention immediately.
DX: mild to moderate Crohn's for 34 years
Additional benefits: chronic anemia, B12 deficient, peripheral neuropathy, facial mylagsia, joint pain, underactive thyriod
Current meds: Colozal, Nexium, Entocort, Flagyl, steriod cream, monthly B12 injections, Neurontin, Synthroid, Effexor ER, pain meds as needed