Fundal height

Kaisha
Hi guys at my last doctors appointment I was 23+3 and measured a fundal height of 26. My doctor never explained to me about fundal height and what he was doing with the measure, he just muttered the number and moved on. So I went home and googled what it was and what it should be. Which I determined that ours was a little higher than average. I am currently 25+3 and had a doctors appointment this morning. My baby measured at 30 this time! My doctor yet again did not seem concerned. Am I being paranoid or should he at least explain to me why I am measuring so large, I know the internet is a frenemy to us pregnant women but multiple sources have said that doctors usually request another ultrasound to check for excess fluid and what not.