ANXIETY.

anxiety
aŋˈzʌɪəti/Submit
noun
1.
a feeling of worry, nervousness, or unease about something with an uncertain outcome.
"he felt a surge of anxiety"
synonyms: worry, concern, apprehension, apprehensiveness, consternation, uneasiness, unease, fearfulness, fear, disquiet, disquietude, perturbation, fretfulness, agitation, angst, nervousness, nerves, edginess, tension, tenseness, stress, misgiving, trepidation, foreboding, suspense; More
antonyms: calmness, serenity
PSYCHIATRY
a nervous disorder marked by excessive uneasiness and apprehension, typically with compulsive behaviour or panic attacks.
"she suffered from anxiety attacks"
2.
strong desire or concern to do something or for something to happen.
"the housekeeper's eager anxiety to please"
synonyms: eagerness, keenness, desire, impatience, longing, yearning
"her anxiety to please"