5 month old always hungry?

Casey

She seems to be eating ALL THE TIME. She’s starting on solids but I’m not worried about pushing that yet. I mean she isn’t spitting up a lot or any of the usual signs of over feeding. She was 13.5 pounds a month ago and that was a whole pound more than the month before. In the beginning we had trouble getting her to gain enough now I’m afraid she’s getting too much. I know babies are supposed to be chubby yada yada.. I just want to know if this is normal at this age? It’s hard to tell if she’s really hungry or if she’s eating because she wants to. She feels like a brick!