Hello,
It is very common for students to experience significant sleep disruptions when facing high-stakes exams. What you are describing-a mind that "doesn't switch off" and replays mundane thoughts-is known as cognitive hyperarousal.
1. The Impact of Exam Stress
When you are under pressure, your body maintains a higher level of cortisol (the stress hormone) even at night. This keeps your brain in an "alert" state, making it difficult to transition into the deep stages of sleep. The inability to focus on your studies during the day is a direct result of this sleep deprivation, creating a cycle where stress causes insomnia, and insomnia causes more stress about your performance.
2. Bronchitis and Sleep
You mentioned a history of bronchitis. While this is a respiratory condition, it is important to ensure that any current symptoms (like coughing or wheezing) are not physically contributing to your wakefulness.
Furthermore, some medications used to treat bronchitis, such as certain bronchodilators, can sometimes have stimulatory side effects that interfere with sleep.
Next Steps (Management Strategies)
Since your exams are just a few days away, the goal is to implement immediate, non-pharmacological interventions to quiet your mind:
The "Brain Dump" Technique: 30 minutes before bed, write down everything you are thinking about—exam topics, worries, or mundane tasks. This physically "offloads" the information from your active memory to the paper, signaling to your brain that it doesn't need to keep replaying them.
Stimulus Control: Use your bed only for sleep. Do not study, eat, or use your phone in bed. If you are not asleep after 20 minutes of lying down, get out of bed, go to a different room with dim lighting, and do something boring (like reading a dry textbook) until you feel sleepy.
Sleep Hygiene: Avoid caffeine after 2:00 PM. Blue light from screens suppresses melatonin; try to avoid your phone at least one hour before you intend to sleep.
Helpful Tips / Word of Caution
Avoid Self-Medicating: It may be tempting to use over-the-counter sleep
aids or sedatives right before an exam. However, these can cause "morning grogginess" and significantly impair your memory and concentration during your test.
Short-Term Support: If these techniques do not help tonight, you may consult a doctor for a very short-term, mild sleep aid that won't interfere with your cognitive function the next day.
Summary: Your insomnia is likely driven by acute exam-related stress. Implementing a "brain dump" and strict sleep hygiene can help lower your cognitive arousal so you can get the rest needed for your studies.
Best regards.