salt water flush makes me nauseous

i'm on my 3rd day and this morning i did the salt water flush for the first time. i could only get thru 2/3 of the entire quart because i started gagging and it made me throw up a little. i have feel extrememly dizzy, nauseous, and i started sipping the lemonade to try and make me feel better. since i started i've only had one BM the morning of my 2nd day and this morning there was minimal BM but mostly a bright yellow mucous like substance. has anyone else had this experience? any feedback greatly appreciated :)