Nervous

/ˈnəːvəs/

easily agitated or alarmed.

"a sensitive, nervous person"

Exposed
/ɪkˈspəʊzd,ɛkˈspəʊzd/ adjective not covered or hidden;...

Threatened
/ˈθrɛtn/ state one's intention to take hostile action against...

Fearful
/ˈfɪəf(ʊ)l/ Feeling or showing fear or anxiety. "they are fearful of the...

Emotions Wheel
I have enjoyed working with the emotions I found in Plutchik, but there are so many more...