User blog comment:Miskos3/Fairy Tail Chapter 472: Laxus vs. Wahl, Review/@comment-25111584-20160208124428/@comment-7418318-20160209103348

I agree with CNBA.

The worst that would have happened to Laxus if he re-visited Proly for a check-up is her telling him that she can't help, which apart from a wasted afternoon perhaps would leave him in the exact same position he was before. She might have hit him with a broom too, but it's not like he'd even feel that.

Sure Porly would know his "secret weakness" but I doubt she'd tell anyone if he asked her to keep the secret.

So with nothing to lose and everything to gain, why did he choose not to say anything again?