I have a headache ， nausea and vomiting.

    我觉得头痛、恶心、想吐。

    I feel under the weather.

    我不舒服，生病了。

    I feel unusually tired.

    我感到反常的疲倦。

    I feel light-headed.

    我觉得头晕。

    I have been staying in for a few days.

    我生病在家几天了。

    My head is pounding.

    我头痛。

    My symptoms include loss of appetite， weight loss， excessive fatigue，
fever and chills.

    我的症状是没有食欲、体重减轻、极度疲倦、发烧和发冷。

    I feel exhausted most of the time.

    我大部份时间都觉得非常疲倦。

    I haven't had much energy for some time.

    我感到虚弱有段时间了。

    I feel drowsy ， dizzy and nauseated.

    我觉得昏昏欲睡，头晕目眩，还想吐。

    I feel as though everything around me is spinning.

    我感觉周围的东西都在打转。

    I have noticed some hearing loss.

    我发觉自己的听力变差了。

    I have some pain and itching around my eyes.

    我眼睛周围又痛又痒。