Thomas walks so much now!

Thomas is walking around the house so much now! He loves it too! He rarely wants me to hold him anymore...sometimes, when I just want to hug him, he pushes me away because he doesn't want to be held. He also tries to open up the cabinets in the kitchen and the bathroom. I had to put the safety latch on the cabinets yesterday. He tried opening them today, but couldn't. He came back and tried several times and finally gave up! All this walking around is not tiring him at all, but it's tiring for me!