1.You will easily feel tired. Once you work and study for a long time, you will feel head swelling, dizziness and headaches. Sometimes, you will pay inattention to you daily work.
2. Your mental is easy to excite, while memory and association increase. And you can not focus on your study and work, with being sensitive to light and noise.
3. Having head pain or tension headache, especially when studying, your headache will worsen.
4.Having these symptoms: autonomic dysfunction, tachycardia, blood pressure fluctuations, anorexia, constipation, diarrhea, frequent urination, etc.
5.You will be overly concerned about their symptoms, and suspected of being sick.
6.You will have a sleep disorder, difficulty in falling asleep. Even you have many nightmares.