For every case, a detailed medical and psychiatric history is always needed.Also is of importance is the detailed mental status examination to come for a diagnosis and its management accordingly.
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From your description, there is no mention of any symptoms or disorder, only asking for a “ medical certificate “.
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Medical certificate means if someone has a disease and under supervision of a medical professional.
Other wise, even thinking about getting such a medical certificate is not a nice idea.
So the answer is NO.