Very quick loss but low maintenance cals

yirara

Here's the deal: I've lost 18kgs much quicker than expected starting about three years ago. After maintaining for over two years I regained some 8kg again due to a severe depression. I'm just over a month in again and am down 3kg (no initial water loss, loss started slowly after just under a week and has picked up pace now) and it really shows. I mean, that would be a massive 770 deficit a day in theory. Thing is: it's not. I eat at maintenance twice a week and I eat back my workout calories. From maintaining and tracking for a long time I know what my maintenance cals with and without workout are.

In theory my deficit is around 300 per day on average, taking the maintenance days into account. Of course I weigh everything in grams and the only thing I am lenient on is cooking oil - if I use any. I weigh the oil before and after and assume 1ml = 1gr, thus I underestimate a tiny bit.

Well.. not complete odd maybe as I have some health issues that manifest with often crashing just an hour after breakfast due to hunger and lack of energy. Something is not quite right there and my GP has thrown some actual metabolic diseases to be investigated into the room. Should I lose quicker with those though? Last time I lost weight the picture was the same though: very rapid loss that got faster with time and not so high maintenance cals afterwards. And just to add to that: I was very ripped after losing and fairly muscular. No actual proof, but it looked like I didn't lose much muscle mass. Just doesn't make sense at all to me.