I feel distant and anxious at times, there is tightness in my chest (I don't know whether it is because of bronchitis or anxiety) and I feel like crying, a lot of times. I feel as if my brain is always thinking about something or the other and it is never at one place where at present it should be. I keep thinking and getting anxious about the fact that I am always thinking about something. I get weird dreams at night and my sleep is very irregular, like, waking up at the middle of night and still thinking about something. Please help.