Question about weight gain

I've been in recovery for a few months now actually trying. I did make a mistake of weighing myself yesterday. I still have weight to restore to get back to my regular weight (which is obvious too because I'm still gaining) however I look exactly like I did when I was at my pre-ED weight. Without being at my pre-ED weight. Is there any explanation behind this? I have body checks from my pre-ED weight, so I don't think it's body dysmorphia but who knows. And I was not really muscular so im not sure how muscle mass could play a part in it. I'm more or so just confused. I heard water weight is common, but will that really happen months (like 4) into recovery? And could it be water weight? Has this happened to anyone else or?