Is my anemone sick?



I placed my bubble tip anenome in my tank yesterday. It looked fine when I placed it in my tank. In the night it moved and barfed out a blob of junk the size of a quarter. It folded itself up and got bubbly on the sides. The tentacles are flat and sad looking. My aquarium is well established. My corals, fish, starfish, and sea hare are all happy and healthy. My water tests are on target. My lighting is bright, but I placed the anemone in a less bright spot. What could be wrong with my anemone? Is it just adjusting? Is he going to die? I need some wisdom from someone who has experienced this.