Going from a L to an XL

I'm not gaining crazy amounts of weight. They are just slowly coming on. A little .3 there and a .004 in the morning, followed by a .1 in the night. Additionally, I have always had the frame for an XL shirt, but preferred to buy L because I never knew what an XL felt like... which feels awesome! My shirts actually fit and aren't too tight. I guess we all go through clothing phases. I had one where I want to look swoll all the time. Which was uncomfortable and dumb.