Thank you for the query.
As Crohn`s disease very often causes intestine narrowing due to inflammation process it can lead to partial intestine obstruction. Depending of the place and size of such narrowing it can produce different symptoms like abdominal pain
, constipations, nausea
etc. It is possible that your intestine has gotten narrow in some place and this is causing this constipations.
It is advisable for you to have abdominal X-ray
to rule out emergency intestine obstruction, have colonoscopy
and get scheduled for abdominal CT with contrast. If the narrow place will be localized, surgery is necessary.
Hope this will help.