blackaffronted i'm sorry you're feeling down. i'm surprised that you're feeling bloated and not sleeping well, it's very much the opposite for most people on this WOE
re the spotting, could it be anything else other than the diet? not to try and worry you or anything, but when this WOE is so radically different from the usual advice we can ascribe symptoms to the diet that have a different cause. i would just keep an eye, that's all
the other thing is (and please note i am not a biologist or medical type at all) but i have a feeling that hormones are all tied up with body fat, so if you're losing weight it can muck about with your cycle in the same way that gaining weight can
I do sympathise though with the misery of constant bleeding - i had a copper iud fitted a couple of weeks ago and it has caused spotting after years of very very regular periods which has been pretty irritating, and uncomfortable as you say. obviously the cause of my spotting is different, but still, i know how frustrating it is
you say you have a lot to lose - well i've halved my bmi to now around 20, for the most part with this WOE (I was initially doing a kind of low carb/low fat thing of my own devising, which worked in terms of weight loss but made me miserable and didn't stop the binging/starving cycle i was already in, and i was close to giving up). sometimes i lost every week, sometimes i didn't, but i'm now about 4-5st lighter than i was this time last year
for pooing, are you feeling like you need to go but can't or it's painful? or do you just not need to go? if the former, others have found psyllium husks can help, and personally i had to reduce the dose of magnesium supplement i was taking as it was making me poo twice a day