My pattern is somewhat similar. I tend to go up, down, up, no change, up, down, down, etc. in very small increments (from 0 to 0.5 lb gain/losse) for about 5-7 days. At the end of all that, I typically end up anywhere from 0 to a half pound lighter than I started. Then, I will lose anywhere from 1 to 1.5 lbs at the end of all the up and down nonsense. And then I'm back to up, down, up, down.
So, I lose about 1.5 lbs to 2 lbs a week on average, but the bulk of the loss comes on my "whoosh" days. The rest of the time, I just bounce back and forth. And there's no rhyme or reason to my whoosh days...it doesn't seem to matter what I eat, how much exercise I do, etc. (and TOTM is no longer relevant for me, given my age).