Job Interview Questions: Is it ok to ask to re-arrange a job interview?

Its not a direct job interview, its more of an appointment were i have to go and speak to a company about which type of job i want to be put into...

they made an appointment with me tommorow morning at 9:30 but today i have came down with a bug/flu (toilet... feeling sick... shaking... pain) so on, would it be a bad idea to phone them and tell them how i feel and if it is possible to re arrange it for another day?

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Recommended Answer:
no it's not bad, but you might lessen chances of getting hired

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