Discomfort after Gallbladder cleanse

I was advised to do a Gallbladder cleanse with the apple juice and olive oil proceedure. My first attempt in February was great, all went to plan and I passed lots of small greenish stones the next mornig.
As I am going abroad to work at the end of this month (May) I decided to have another go as I was still experiencing a lot of pain after eating anything with the slightest bit of fat in it. So on Thursday this week I drank 4 litres of pure apple juice followed by 10 fluid ounces of olive oil and the juice of one Lemon.
By around 8pm in the evening I had vomited! I was surprised as last time I didn't. The next day I passed about 15 greenish stones the largest was about 2 cm. Today (Sunday) I am still in a lot of discomfort, especially in my top left and top right of my abdomen. Has anyone got any ideas as to what went wrong this time and what to do now? I don't fancy the idea of going to the local GP and explaining about the cleanse.
Any information or similar experiences would be really gratefully received.
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