I only whoosh’d when I was in a dieting nightmare of insanity and believe me I loved those ‘controlled and manipulated and not real whoosh’s’ LOL
Water weight is what a whoosh is all about or a true long term starvation where the body has to give it up.
We all know, long term, slow weight loss over time is key while we change the mindset to adopt and feel wonderful on the menu plan you want for long term eating lifestyle.
So no whoosh unless ya eat up the carbs now, gain up like 6-7 lbs and whoosh off like 4-5 overnight and then you still gotta deal with those last 1-2 that will take longer to get rid of 
OK I am being snarky and funny on this but whoosh isn’t a real weight loss reality. It is a start on a new menu or it is thru controlled crazy that the big whoosh’s happen for most of us 
Best whoosh, never eat again or go on a reality show like Survivor or Biggest Loser or a show like Alone and let starvation hit ya full on and let it happen, you WILL whoosh down fast and again being funny here 