4th flush and I threw it all up tonight

ugh! why? 2.5 hours into my 4th Hulda Clark flush ( done with fresh lemon juice not grapefruit- too hard on my kidneys )
really bad nasuea woke me up and wala threw it all up..
frustrated I really needed this flush ive not been able to really eat solids for weeks now.
any ideas? tips? this is new!! of course the last week the pancreas is affected too