'Haha it's my OCD coming out'
'I was happy two seconds ago, I must be bipolar'
'I swear my mum must be a schizo'
'I didn't get those Ed Sheeran tickets, so depressed right now'
But would we say things like:
'I want to gourge myself on chocolate, I'm so diabetic'
'I'm all rolls in this dress, must have cancer'
'I don't like strobe lighting. Sometimes I'm epileptic'
'Cba to get out of bed. It's the same as being paralysed'
No? So why do we trivialise mental illness?
An easy explanation is that mental illness is seen as desirable. It makes you cute, quirky even. When Suicide Squad was released, couples jumped straight on the Harley Quinn and Joker bandwagon. They didn't care about the dysfunctional relationship, they were just so desperate to see themselves in these insane characters. It becomes easier to do that when you label yourself with BPD or PTSD. It became more than just a joke, it was a desire to be suffering with the same mental demons.

Today I sat on the kitchen floor whilst having a panic attack. I screamed until I threw up all over myself and then lay on the floor until my Mum came home to pick up the pieces. Nothing about that scenario screamed fun or cute to me.
So the next time you start to mention a mental illness, stop for a minute to make sure that you are saying it for the right reason. Mental illness needs to be talked about, but only for the right reasons. There is already such a stigma that any trivialisation sends us right back.
If you are suffering, if you are struggling then do seek help. Talk to a doctor, a family member or a friend. But try not to self diagnose on Google, it will only end up telling you that you're a psychopath with an inclination to murder, which understandably will terrify you and make everything so much worse.