Weak

/wiːk/

lacking the power to perform physically demanding tasks; having little physical strength or energy.

"she was recovering from flu, and was very weak"

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

Scared
/skɛːd/ fearful; frightened. "I wasn't scared at...

Anxious
/ˈæŋk.ʃəs/ feeling or showing worry, nervousness, or unease about something...

Insecure
/ˌɪnsɪˈkjʊə,ˌɪnsɪˈkjɔː/ (of a person) uncertain...

Rejected
/rɪˈdʒɛkt/ dismiss as inadequate, unacceptable,...

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...