Syrian rue when not crushed up can be difficult to digest at all, it works best when powdered. The shells also contain some nasty bits that can upset your bowels, but not too badly because you might not digest them and you're taking a relatively small amount.
I'd be interested to learn the intensity of your trip, that quantity did not even work o n me when I tried it.
Good luck, and blessings for light!!
Your love, our duty!