As a carer you spend a lot of your time waiting for something to happen, and often the waiting is the hardest part.
As an example this happened a couple of years ago.
My son been bad (low) for a week or two and hadn't been eating properly. I was worried because I knew something was going to happen and in the evening he came down stairs and collapsed halfway. I went out to him and in all honesty my first thought was that it was down to him not eating, but he said he'd taken an overdose. He'd taken an awful lot of his meds and was duly rushed to hospital. They kept him under close observation until the next evening but then he came home to sleep some more as often all an overdose of those really does is make you sleep deeply for a long time. Turned out it wasn't any kind of suicide attempt - he had been having breakthrough symptoms (hallucinations) for the first time in a long while and wanted to stop them. One extra tablet led to two to three...
But in one way when it happened it was easy to deal with. Something happened and something had to be done about it. You react. The hard bits are the waiting for something to happen.
With any mental condition (or any long term illness for that matter) there are good times and bad times. Ups and downs if you will. If you're looking after that person you get to know the signs and you act accordingly. But when you know that sooner or later that crash is coming waiting for it is a nightmare. Waiting. Always waiting. Are you over reacting? No, you're sure. Things are going down.
And you wait. And wait. And there's no help anyone can give because nothing is happening for them to help with. And still you wait.
It can be hours. It can be days. Hell, like the example I gave it can even stretch to weeks. But you know it's coming. You can't do anything about it. In fact you can't really do anything at all.
Most plans need cancelled. Maybe sometimes people think you're unreliable and don't bother contacting you any more. I mean 'Sorry mate but Jr is a bit off. Can't put my finger on it but something is up, you know?' Of course they don't know. How can they?
Then 'it' happens. It crosses your mind how selfish you are that you're almost relieved 'it' is finally here. And you react. You do what needs to be done. That's the easy bit.