This is just imo:
I'm 5'10" as well. First, as a caveat, if you posted a pic that included how wide, e.g., your shoulders were and such, then I could make a more well-informed statement.
I was at 215 this past July (had a medical event that required six months of surgery and little lifting that is just now ending). With all due respect, I was lifting a lot more than you are: squat 350x20, bench 225x27, etc. I found that at my height, 215 was right around the point where I needed to tighten things up a bit.
Without having a pic of you, I would imagine at that weight/height that you should probably start by tightening things up a bit. Your strength numbers are really still at beginner levels, so you may have been a bit too aggressive on developing your base level of strength (though congrats on getting there!). The added benefit of starting off by leaning up is that leaning up is a good way to learn your body and how it reacts to different stressors relating to diet. IMO, I'd guess that when you start losing, you'll find that you have more than 30 pounds to lose before you get lean enough to start gaining again.
Again just my .02