I am thinking that castor oil packs applied to the liver/GB area every night might help to reduce inflammation/spasms. Go to EdgarCayce.com (I think) to read how to do them.
I am thinking also that some coffee enemas would be extremely helpful. It seems that perhaps you may not have flushed all of the toxicity out of your system with your last flush hence the feeling bad/ adrenaline rushes. Adrenaline is released when the body senses an imminent threat...fight or flight. Your body may simply be reacting to the results of the flush itself, sensing danger.
The coffee enema would assist the GB/Liver to release bile...and possibly more stones. It is gentler to the system than a flush. The castor oil packs are useful to soften/reduce inflammation. They are extremely soothing.
I would back off of the full-blown flush for now as it is somewhat evident from your post that you are still pretty toxic. Take it slow and listen to your body.
I hope perhaps this helps. Others may have better suggestions.