###Human: I have mixed emotions and unable to concentrate on my work. What can I do? ###Assistant: Hi. I have gone through your problem, and I can understand your concern. It can be due to mood disorder and depression. You need to consult a psychiatrist soon as depression can present with a sleep problem, a decrease in energy, numbness, unable to concentrate on work, and low mood. In such situations, taking SSRI (selective serotonin reuptake inhibitor) can help you.