If you've been in employment for several years you will only be expected to include the highlights of your experience so small gaps may not really be an issue. Also a few months' hiatus between periods of employment can often be concealed through clever formatting - omitting the months and just showing the year. But if it's much longer than a few months you'll probably need to elucidate.
It's no secret that working life can be stressful. Whether it's running to catch the train in time in the morning, dealing with a crisis at work or having to juggle personal commitments on top of it all; the 40-hour work week can leave you feeling quite drained by the time the weekend is in sight.
Mental health awareness in the Music Industry is a hotly debated subject at the moment. High profile suicides and celebrities coming forward to openly discuss their mental health concerns, has led to a huge awareness of the depth of the problem.