About a week now.
About five days running already.

I can't lift my right arm.

I cough a great deal at night .

I don't feel like eating anything.

I feel a bit off color.

I feel a pain in my left leg.

I feel absolutely rotten.

I feel chilly.

I feel dizzy and I've got no appetite.

I feel feverish.

I feel hot and cold.

I feel like I'm burning up.

I feel like vomiting.

I feel poorly.

I feel rather unwell.

I feel shivery and I've got a sore throat.

I feel sick.

I feel so ill.

I feel very bad.

I feel a dull pain in the stomach.

I have a headache.

I have a splitting headache.

I have a stomach-ache.

I have a stuffed-up nose.

I just feel all pooped out.

I keep feeling dizzy.

I really feel terrible.

I seem to have pain all over.

I think I'm dying.

I tried some sleeping pills,but they have done nothing for me.

I'm a bit stuffed up.

I'm aching all over.

I'm afraid I've got a temperature.

I'm feeling rather out of sorts these days .

I'm having some trouble sleeping.

I'm rather sick.

I'm running a fever.

I'm running a temperature .

I'm suffering from insomnia.

I'm under the weather.

It all began yesterday.

It came on last night.

It hurts terrible.

It keeps hanging on.

It sort of hung on .