TMI about my gallbladder/stool

I recently started taking Ursodiol and have noticed a few things--I wanted your guys' input to see if any of you have experienced the same things.

1) I've noticed in increase in discomfort--I'm having a lot of cramping resulting in tenesmus. It feels like I have to have a BM, but then don't produce anything.

2) Today my stool is bright green. I have not, to my knowledge, eaten anything out of the ordinary or colored strangely that would produce this effect.

Do these sound like normal side effects of Ursodiol or should I contact my doctor right away to see if something is up with my gallbladder? I had a normal (if a bit loose) stool yesterday (accompanied with intense cramping), but today it's all cramps, loose, and bright green. Thoughts?

Iron pills give me green stool.....and black jelly beans

For the first 2 months after my surgery my stools were also very green, an I wasn't eating any veggies at all.  Now that I am eating some veggies they are no longer green.  Go figure.

Bright green stool is usually from purple dye.  Gaterade or purple Kool-Aid is common cause.

I don't know about that medicine, but I remember having to take iron pills while pregnant and it turning my stool bright green.