You may be playing too tight and people are getting a read on you. Two things you can work into your game slowly so as not to over do it. One, play tighter from early position and being to loosen up your starting hand requirements moving into later position. Two, begin raising a bit more with lesser holding from late position. Since your opponents seems to like to give you so much credit for being a rock, capitalize on it and increase your
bluffing a little (repeat, A LITTLE). Don't over do this or they'll figure it out as well.
There are other things you can do as well, but start slow and work little things into your game to see the effect it has. Then move on to other changes. It often doesn't take a lot of tweaks to alter your perspective on games.
Oh, and btw, when you first sit at a table, play your normal game for a bit to build that table image you typically get pegged for, THEN make the changes above.
Finally, yes, if you're in late position (CO or button) with QQ-AA, try slow playing a little preflop to see what happens before either turning on the heat or letting go after the flop. Don't be surprised to see the occasional suckout happen when you do this though, so don't get married to the hand if you truly think you're beaten by a higher hand.