There’s a test for that: the Holmes and Rahe Stress Scale. You can look up that term online for more information. I’ve linked to one source that has a decent, short explanation, and the complete scale itself. Other sites can offer more in-depth perspective.

You may need to adjust some of the items for your specific circumstances. Note that the scale indicates that even “good” stuff in our lives (as well as, duh, “bad” stuff) can contribute to overall feelings of being off-kilter, out of it, not quite firing on all cylinders.