Each of us has been where you are -- thinking our pain isn't so bad and fearing to make it worse. Are you going forward or have you moved on to the gallbladder surgery forum?
If your gallbladder is so bad you need to have it out, why not find out? Better to have a diseased thing out of you than poisoning you. But if it can be managed or even cured without surgury, you have to let go of your fears -- in a controlled way.
Congestion is a state of mind as well as a physical reality.
One needs to let go of the troubles as one drinks the mixture. If you can relax and let go, you might get a good night sleep. In the morning, you'll start the process of eliminating that which troubles you.
I did my first cleanse all alone one weekend. I pre-programed my phone to call emergency and left it by the bed. Then, I drank the drink, went to sleep, slept well and gushed stones the next morning.
If you live (or sleep) in fear, you preset conditions to lead to problems.
Call this the Zen of Flushing -- and forgive me if I haven't honored real physical issues that justify concern.