Afraid

This few day when I was awake in the morning I will feel my stomach is really uncomfortable. I know that's the reason I think about later have to attend the preparation ielts class, then I feel stress, pressure, nervous, when I have those emotion, then my stomach will start uncomfortable, feel to vomit, feel to diarrhea. This feeling always trouble me to attend the class. Always think of this is only a normal tuition class to teach me English, but my mind still cannot be steady, seem like I'm in the exam classes. I'm really tired of this feeling, I hate this feeling. Who can save me? Who can help me? I'm really uncomfortable. I'm really afraid of ielts examination. ;(