Sluggish liver & low stomach acid query

I've got some queries about doing a liver flush-hope someone can help?
What happens the next morning if you don't have a bowel movement? At the moment the only thing that makes me go is prune juice and I'm wondering what would happen if I was unable to pass all the stones??
Also, I'm a bad sleeper so the going to bed at 10 or whatever doesn't really appeal if I can't sleep! Would it be OK to take a herbal sleeping pill?
I did the Bicarbonate of soda test which proved I have low stomach acid so I'm looking at ways to rectify that. Can I ask what people think is best: Betaine HCI, Swedish Bitters or Chinese Bitters? Swedish Bitters always seem to contain Senna which puts me off.
Any help, advice etc would we very welcome. Thanks a lot. Tweet