Brief Answer:
You should start medicine

Detailed Answer:
Hi
Welcome To Ask A Doctor Service
thank you for asking your query,actually you did not say anything about your medical condition methotrexate can be advised in multiple types of medical condition so I need to know the exact disease you are suffering with.
anyways if your doctor has suggested you to start ,then you must start because Methotrexate is a disease modifying agent and this will change the natural history of your disease and you must start if advised by some qualified doctor.
if you do not start ever medicine then your disease condition may get worse with time.
thank you and regards
Dr Diwashish

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