Rocket Appartimento Steam Wand

Hi everyone!! I have a question that I hope someone can answer. I am an at home Barista. I have a rocket appartimento. I recently noticed a change to my steam wand - it drips after turning it off, never did that before. When I do turn it on, the steam isn't as hot as it was. When I used to turn it on I wouldn't even be able to hold a rag on it for too long while cleaning, now I can due to the temperature drop. I can even put my hand fairly close to the wand without getting burned. I also noticed that the microbubbles are bigger. What could be wrong here? Has anyone else seen these particular problems? Thanks so much.