Chronic and episodic stress can actually cause you to become sick. Some of the physical symptoms of stress are:

Aching or pain that occurs anywhere throughout the body either continuously or frequently
Headaches
Back pain
Carpal tunnel and tennis elbow
Neck and shoulder pain

Heart problems
High blood pressure
Chest pain
Heart palpitations
Heart disease
A rapid or racing heartbeat.

Gastrointestinal problems
Upset stomach
Heartburn
Constipation
Nausea
Diarrhea
Excess Belching and Flatulence
Sleep problems
Insomnia
Sleeping too much
Restless sleep
Waking up frequently throughout the night

Skin problems
Eczema
Boils
Rashes
Hives
Psoriasis
Itching

Decreased Immunity
Frequent colds
Frequent flu
Outbreaks of herpes sores
Allergy attacks that are unexplained

Obesity

Sexual Issues
Loss of sex drive
Poor sexual performance

Other symptoms
Clenching the jaw
Grinding the teeth
Muscle tremors
Lips and hands trembling
Dizziness, light headed and fainting
Buzzing, ringing or popping sounds in the ears
Sweating
Blushing frequently
Cold hands or feet
Sweaty hands of feet
Dry mouth
Difficulty swallowing