Definitions, A Comparison

Stress: a state of mental or emotional strain or tension resulting from adverse or very demanding circumstances. This article explains it well.

Anxiety: a feeling of worry, nervousness, or unease, typically about an imminent event or something with an uncertain outcome.

Generalized anxiety disorder (GAD): is an anxiety disorder that is characterized by excessive, uncontrollable and often irrational worry about everyday things that is disproportionate to the actual source of worry.

This excessive worry often interferes with daily functioning, as individuals suffering GAD typically anticipate disaster, and are overly concerned about everyday matters such as health issues, money, death, family problems, friendship problems, interpersonal relationship problems, or work difficulties.

Individuals often exhibit a variety of physical symptoms, including fatigue, fidgeting, headaches, nausea, numbness in hands and feet, muscle tension, muscle aches, difficulty swallowing, bouts of difficulty breathing, difficulty concentrating, trembling, twitching, irritability, agitation, sweating, restlessness, insomnia, hot flashes, and rashes and inability to fully control the anxiety. These symptoms must be consistent and on-going, persisting at least six months, for a formal diagnosis of GAD to be introduced.

The term anxiety covers four aspects of experiences that an individual may have: mental apprehension, physical tension, physical symptoms and dissociative anxiety (detaching from reality). (source: Wiki)

For I, the L-rd your G-d, hold your right hand; it is I who say to you, “Fear not, I am the One who helps you.” ~ Isaiah 41:13 

 Anxiety in a man's heart weighs him down, but a good word makes him glad. ~Proverbs 12:25 

Do not be anxious about anything, but in everything by prayer and supplication with thanksgiving let your requests be made known to G-d. And the peace of G-d, which surpasses all understanding, will guard your hearts and your minds in Messiah Yeshua. Finally, brothers, whatever is true, whatever is honorable, whatever is just, whatever is pure, whatever is lovely, whatever is commendable, if there is any excellence, if there is anything worthy of praise, think about these things. ~Paul