An awesome tea from David's Tea (previously just Canadian, they're opening stores in the US and have an online store, too) is the Organic Le Digestif. It has catnip, fennel seed, ginger root, peppermint, orange peel, and stevia leaf flavouring (hopefully this is ok for you, I know it irritates some). I find that the combo of all those old "stomach herbs" REALLY helps, if not for those nasty semi-obstructive episodes, for bloating/trapped gas, nausea etc. if that's one of your issues. Also something about the catnip just totally mellows you out. Really nice before bed. Cheers!