I have a question, has anyone ever dealt with a situation where your stress leave is denied by your insurance through work, but my doctor is saying I am unable to return to work for at least 8 weeks while I go through treatment.

Can my work force me to return to work if the insurance denied my claim but my doctor including psychiatrist and psycholoslgist both have said I am not to return to work?

I live in Ontario Canada in case that makes a difference