Hair loss can happen after major stress or anxiety, usually, with a delay in appearance of three or four months.
Anxiety can be a cause for hair loss, but, at the same time, both, anxiety and hair loss, can be symptoms of thyroid gland disorder, known as hyperthyroidism.
Hyperthyroidism, or, overactive thyroid gland, can make you feel anxious, nervous, even, experiencing panic attacks, and hair loss with soft, thinning hair.