I have noticed a stigma surrounding mental health myself and a lot of the time, it tends to come from those who are older I find and don't believe that mental health is something that is real. 

I have heard people say to those who are struggling "suck it up and get on with it" or "you are so lazy, if you weren't so lazy, you wouldn't feel like you do" and those are some of the worst things I feel myself you can say to anyone who suffers with mental health.