👉 Example: You used to love painting or going to the gym, but now you can’t bring yourself to start — or even care.
3. Irritability or Mood Swings
Your tolerance for frustration is low. Small annoyances become big deals, and your reactions might surprise even yourself. You may lash out or cry unexpectedly.
👉 Example: Someone cuts in line, and you feel rage. Or a comment from a friend makes you unexpectedly emotional.

4. Difficulty Concentrating
Mental fatigue makes it hard to focus. You may read the same paragraph multiple times, forget what you were doing, or struggle with decision-making.
👉 Example: You try to write an email or follow a conversation but your brain keeps wandering or feels foggy.
5. Sleep Disturbances
Stress hormones like cortisol can disrupt your sleep. You might have trouble falling asleep, staying asleep, or feel unrested even after sleeping long hours.
👉 Example: You lie in bed exhausted but can’t turn off your thoughts — or you wake up in the middle of the night and can’t fall back asleep.
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