How was Michael Phelps diagnosed with depression and anxiety? What signs and symptoms did he experience? What lead to his diagnosis?

He had thoughts of ending his life, or not wanting to be alive. After a while, he actually started to say he didn't want to be in that sport anymore after the "hardest fall" back in 2012 Olympics. He spent 3-5 days in his bedroom at a time. He barely slept, and developed an eating disorder, not eating for days on end.

Explanation:

These are all serious symptoms of depression. Lack of sleep, loss of appetite and contemplation of wanting to die are all very serious symptoms of mental health issues and it is encouraged to see a therapist