Interesting discussion. I too went up the doses, staying a while on each dose except 2.5, to 12.5 without too much in the way of side effects. I reached goal in early May, almost exactly a year after I started. Weight loss was comparatively slow, averaging 1lb a week. I eat extremely healthily - no UPFs, prioritising protein, complex carbs, lots of water. Take all the usual supplements. My original plan had been to get to the lowest dose needed to maintain and stay on more or less indefinitely. I had no wish to regain after 25 years of yoyoing.
BUT I have ended up going down the doses much more quickly than planned. I've had the dreaded sulphur burps though no change in what I was eating, just marginally in quantity. I also just feel generally a bit off, a bit nauseous quite often. I'm not a big drinker but going up i was still able to enjoy an occasional glass of wine, now just one glass makes me feel really awful. I'm currently taking 3.75 from a 7.5 pen.
My mood is also a bit flat and I'm not as happy with my body at BMI 24 as I thought I would be. My hair, the one part of me i liked, is so thin it looks awful. It has been falling out for the last year and still thinning despite me no longer losing weight and spending a fortune on products and supplements. My nails are also still a car crash. Despite exercising throughout - walking, pilates, yoga and resistance training - and progressing in terms of challenge, I don't seem to be able to develop more muscle. So still flabby in parts, flat bum and loose skin. I have high BP, which neither being on mj nor losing weight seems to have improved significantly, so still on the meds. Ankles also still swell up by the end of the day unless I wear compression tights. So I don't seem to have some of the other benefits that make people want to stay on.
So I'm now thinking I might come off and see if that helps with hair loss (there seems to be some emerging evidence that this can be caused by mj itself and is not just a function of weight loss) and body recomposition. But scared of putting it back on. At least my high BP means I could go back at BMI 27.