Hi, I am not a doctoras you know, but the liver/galbaldder flush is very easy and gentle.IF I were you I would likely go ahead with it.
Your other problems concern me a bit. Have you been to see a doctor about them?
The pain in your appendics area could be something serious. If you are female it could be related to your ovaries. I had a similar pain in the same place and like you it only bothered me when I moved. It turned out I had an ulcer and possibly crohn's disease. I was told to stop taking asperin as this is known to cause ulcers and inflame the intestine. There are other drugs, some of them are pain killers, that also have this effect.IF you are taking anything like this you might want to rethink.
I think you have already decided to do the flush, but you might want to get advice from someone who is more experience than I am. HAve a look on the forums list. There are other groups you can ask advice from.