We all feel overwhelmed once in a while at work with what many call "negative" feelings. Sadness, anger, frustration, loneliness, fear are all part of the inner world and are normal and very human. What we have learned is to supress and deny them and our connection with these feelings is negative, not the feeling itself.
We all want to feel happy, creative and inspired but once we start denying part of our feelings we also are not able to feel the "positive" feelings. How would it be to change our perception about certain feelings and start to experience them? Consider these feelings like friends. Because these "energies" are part of us and it is a bit strange to deny part of ourselves right?