is stress and anxiety connected?

People under stress experience mental and physical symptoms, such as irritability, anger, fatigue, muscle pain, digestive troubles, and difficulty sleeping. Anxiety, on the other hand, is defined by persistent, excessive worries that don't go away even in the absence of a stressor

Anxiety,  young Padawan, is our typical response to a stressor.

In one sense, they are very different. Anxiety is never pleasant. Everybody hates anxiety. But stress can be pleasant. Some people thrive on stress, are bored without it. If there were no stress whatsoever in your life, you'd be bored, so too much stress and not enough are both unhealthy. 

i mean most of the time i could say yes? Anxiety also can be connected to other things but normally stress is the most common i guess?

Yes, I would say so.