He feels headache，nausea and vomiting.
He is under the weather.
He began to feel unusually tired.
He feels light-headed.
She has been shut-in for a few days.
Her head is pounding.
His symptoms include loss of appetite，weight loss，excessive fatigue，fever and chills.
He feels exhausted or fatigued most of the time.
He has been lacking in energy for some time.
He feels drowsy，dizzy and nauseated.
He feels as though everything around him is spinning.
He has noticed some loss of hearing.
She has some pains and itching around her eyes.
He has been coughing up rusty or greenish-yellow phlegm.
His eyes feel itchy and he has been sneezing.
He has a fever，aching muscles and hacking cough.
他有发烧，筋骨酸痛和常常咳嗽。hacking = constant.
He coughed with sputum and feeling of malaise.
他咳嗽有浓痰，而且觉得很虚弱。malaise = debility.
He gets a cold with a deep hacking cough.
He has a headache，aching bones and joints.
He has a persistent cough.
He has bouts of uncontrollable coughing.
He has hoarse and has lost his voice sometimes.
He has a sore throat and a stuffy nose.
His breathing is harsh and wheezy.
He has a stabbing pain that comes on suddenly in one or both temples.
He has a runny nose，sneezi