I'm a 23 year old female and a nursing student. Recently I've been having palpitations, hand tremors and SOB for almost 2 weeks. Due to this, I experienced fainting spells and ringing sounds in my ears. When I go to sleep, I could feel my heart beating really hard. The symptoms were only relieved when I go to sleep. This began when I started my internship a week ago. I was wondering what if this due to fatigue or stress. I had the same symptoms a few months ago but wasn't as bad as now. I hope someone can enlighten me. I'm really worried