I can relate very much. The last flush I felt sick just by smelling the olive oil / grapefruit drink.
I'm experimenting this weekend with apple juice and hemp oil, with added garlic and ginger. I may go for an all natural flush and use garlic to open the bile ducts in place of the Epsom Salts . But at the moment its a total unknown wether it will work, although someone else on here ages ago said it worked.