One of the people in your life is going through an emotional period right now. Their typical sunshiney disposition is getting clouded over, and they could start to get very irritable. Do not let this scare you off from talking to them, though. They need your input and good ideas desperately -- they just don't know how to ask. A gently worded email would be a great way to remind them that you are there for them whenever they need you. They will love the gesture.