Green bowel movement

I'm on day 8 of the Master-Cleanse and this morning after I did the salt water flush and then drank a little of the lemonade, I passed what i saw on the toilet tissue as a bright green movement! I'm freaked out by this because I've never seen this before. I drank a strong berry herbal tea last night at a tea shop and did not drink the smooth move tea. I feel fine otherwise. Is this bile and is this a symptom that I am putting myself at risk of gall stones or something? Tweet