Conflict is a normal part of life. But why do some of us manage to argue about some of life's biggest issues and still be on good terms at the end of it all, while others can barely discuss whose turn it is to take the rubbish out without it feeling like the world, or at least the relationship, is ending?

A friend calls you out on a bad-taste joke. Your partner complains you're not doing your share of the housework. Your manager pulls you up on an oversight at work.

Is your first response to feel attacked, or unfairly singled out?

Do the smallest things set you off these days? A forgotten computer password, a spot of bad traffic, or a partner who forgot to vacuum.

If you've been feeling snappy, irritable or just plain angry over the last few weeks, experts say it could be a sign something else is going on.

Here's why it's worth looking more closely at why you're feeling so testy right now.