I also went up 2 sizes in my jeans, and wear loose untucked shirts. I'm not out to make a fashion statement, and to be honest, I had to get used to the "new look". 90% of the time I carry IWB, and I found that my body shape conceals better at 3:00. During sweatshirt weather I can carry a larger gun, but a Shield or revolver w/2" barrel works best for me.

Make sure you aren't "frisking yourself" during the day. You'll want to for a while, but I sometimes have to check to be certain I remembered to put it on nowdays. You get used to it quickly. 25+ years later, I still favor a small revolver. Two speed strips in my jeans watch pocket.