Post injection swelling

No, not at the injection site or anything like that indicating an infection.

I'm only 2 injections into this journey, 5mg EEn (40mg/ml) 10 days, first time was IM in my thigh, second time i tried subq in the lower right belly quadrant. After a couple days from the first shot, my pants felt tighter on my thighs and butt for a few days, then it mostly faded back to normal. Right now I'm one day out from my second shot, I've eaten a moderate/light amount of food today (cereal, snacked on some mixed nuts and had some after Halloween gummy candy) and my belly is poking out like i finished at a buffet! It's not painful, just feels full.

Anyone else experience this?