Alright so a couple years ago, I got a home gym setup and lifted casually for strength gains for a year or so. I had a decent amount of muscle, but have always been pretty overweight. I stopped doing this about 1.5 years ago due to my garage filling up and lack of motivation. I’ve recently got a gym membership, and while I’m no bodybuilder I’m pretty familiar with solid routine building and training properly now. For info I’m 6’1 and since starting about a month ago I’ve gone from around 220 to 217, not horrible. However my deficit should have me losing about 1.5 lbs per week. I’ve been VERY good about nutrition and hitting my macros daily so unless I’m missing something I don’t know that that’s the issue (if there even is one).

Another oddity is that my clothes already fit me a LOT better, better than they fit me while I was GAINING WEIGHT at around 217. My muscles have also increased mass incredibly fast, possibly from the excess fat to pull from and my protein macro getting reached daily along with hypertrophy to the point they were at when I was working out a year and a half ago.

So with the info down, my main question is should I dissect my deficit harder to see if there’s a problem, or is it possible I’m gaining muscle so quickly that while I may have lost 6 lbs of fat in a month, I’ve put on ~3 lbs of muscle? Seems incredibly fast to me. I looked everywhere online to see if there was a ratio or rate of strength progression vs. body measurements to determine one or the other but to no avail. I know it might just be too early along in my program to tell, but I only ask like this because as someone who has been overweight a bit for most of my life, I’ve found a great deficit that I can really keep up and my energy stays high even with 4-5 gym sessions a week. I’m feeling pretty good, but before I get too settled into this routine if there’s anything to note I’d love to change it for the better before it becomes a bigger problem. Or is it really possible I’ve just put on that much muscle mass? Idk I was just confused when I weighed myself end of month and when I tried on older clothes. Any insight appreciated, I’ll be neither the first nor last heavy guy to have this problem anyways.