Be aware of the impact that external factors can have on your behaviour at work. Recognise how they influence you. Acknowledge that external factors may affect your behaviour and consider telling others "I'm having a bad day. I'm not at my best, please bear with me”.
Don’t immediately jump to conclusions about the intentions of others or make snap judgements.
Sometimes it’s your colleagues that are the first to recognise stress in you. If you suspect that external factors are leading to stress in a colleague, offer them support and highlight other people or services that may be able to help them.