Mortgage options / concerns

Hi all I am self employed and suffered a stroke 3 weeks ago. I will be unable to return to work for around 6 months while I focus on rest and rehab.

Has anyone experience of approaching their mortgage lender (ours is Coventry building society) about switching to an interest only mortgage until I can return to work?

I am nervous of talking to them in case it raises issues around the mortgage.

Thanks graham

That would be great thank you