Try ventilating the house, by opening windows to start - if you see an improvement open up - or install airbricks.
As for the laminate flooring, yes it could be linked - but before going down that route. Has anything been spilt on the floor ? have expansion gaps been left around the floor as now the weather is getting warmer the floor will expand slightly with the heat - if there's no gap it'll lift.
DIY how to tutorial projects and guides - Did you know we have a DIY Projects section? Well, if no, then we certainly do! Within this area of our site have literally hundreds of how-to guides and tutorials that cover a huge range of home improvement tasks. Each page also comes with pictures and a video to make completing those jobs even easier!