Anxiety is the creature that digs its claws in and drags you out of your comfort zone. Anxiety is panic attacks, paranoia, insomnia and crippling worry. Anxiety clouds your decisions. Anxiety leaves you feeling like the dirty product of a one night stand.
You are living on the edge but you aren't any racing fast cars. This adrenaline is certainly not the same as when you're queuing for the biggest roller coaster at Alton Towers either. It's always there. And you don't really know why.
Mental illness is not difficult to understand and often can be easy to control and even, overcome. In fact sometimes, it's easier to control mental illnesses than the judgement and opinion of people, who don't have the time or compassion listen, understand and support. That's the real problem and the source of the stigma for people with mental illness.
Anxiety affects different people in different ways, but some of the most common symptoms are: a dry mouth, pounding heart, feeling breathless, fatigue or difficulty sleeping, dizziness and headaches, lack of concentration, needing the toilet frequently, constant worrying, irritability, and nausea.
The geotagging - which says where you are - can then be used to compare with existing mapping data to see whether you are in a deprived or affluent area, whether there are many trees or rivers nearby, and even what levels of pollution there are.
Some people even feel that by worrying, they are somehow protecting themselves against the feared drop coming; they have learned that most things they worry about don't come to pass, so fear that if they take their eye off the ball and stop worrying, they will allow a calamity to creep in and take them by surprise.
We should be much more aware of what is an unacceptable level of stress in our professional lives. We should feel much more able to admit when we are struggling. We shouldn't be seeing depression and anxiety, often exacerbated by our highly pressured lives, as a weakness that we need to hide.
You need something that you can do where you don't have to ask, you don't have to wait around for someone else to help you, you don't have to fear other people's opinions or emotions. You just have something, right there and then, at the end of your fingertips to assist you in staying safe.
If we really want to reduce the stigma and allow people to reach out and seek help, then we simply have to be teaching people about what mental illness is and introduce compulsory mental health education in schools.
Could we please wake up. It's 2015 for God's sake. It's time to spend some money on why people aren't mentally healthy to come up with solutions to alleviate the suffering. When I perform my show, Sane New World, I invite the audience to have a discussion or ask questions. Three times I've had people stand up and say that they've had cancer and mental illness and when I ask which is worse to them they've all said the depression. One man told me and the audience that with cancer he wanted to live, with depression he wanted to die.
We can take action to help people hold on to their dignity. Encouraging men to strengthen social relationships can help to fend off loneliness and make it easier for them to talk about what is bothering them so it doesn't build up to a crisis without release.
Without a doubt, we can say we are world leaders in this form of therapy - one which favours talking over tablets, empathy over medication. I feel a great sense of pride in our health and care system that other countries, such as Sweden - often held up as an exemplar of modern health care - are now trialling similar approaches.
The sad truth is that for thousands of people with mental health issues in the UK, there is no dignity. They face services stretched to breaking point and a system which seems labyrinthine and unnavigable.
The truth is that there is outrageous discrimination at the heart of the NHS. If you have suspected cancer you have a right to see a specialist within two weeks - and rightly so. But if you are a teenager with an eating disorder - a condition which can kill - you have no such right. It's impossible to justify that.
This World Mental Health Day is particularly exciting for Mind, as we will be welcoming the Duke and Duchess of Cambridge to one of our local projects. Such a high-profile visit feels like a significant moment for mental health, a measure of how far we have come in raising the profile of mental ill health, to bring it out of the shadows and into the spotlight.
Improving the wellbeing of children is about listening and taking concerns seriously. One way England could do this would be to follow the example of Northern Ireland and Wales, where every school has a counsellor.