In clinic, people with panic disorder often present with sudden palpitations, chest tightness and rapid breathing as their main concern.
Anxiety is not simply “overthinking” or “feeling nervous”. It is often a persistent state of mental and physical hyper-alertness.
Depression is more than simply feeling sad or having a bad day. It often involves a combination of low mood, reduced motivation, disturbed sleep, and changes in physical wellbeing.
HK Clinic 
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