Hi and welcome to the Chiari forum.
Well u will have to look at ur diet and eliminate those things that may trigger a flare as u mentioned salt is something that adds to ur issues....
With IBS,m many of us have it, but it can be for different reasons, so b4 u take nething talk with ur Dr, and have some testing it may be as simple as adding magnesium as a supplement..
We do have a list of Drs in Canada.....that other members have been to and liked...the list is not a referral or endorsement, u will need to research them, but the list should give u a starting place.
http://www.medhelp.org/health_pages/list?cid=186