Ethical discussion on Assisted Euthanasia

Please take this down if this kind of discussion is not allowed.

I was very ill this past week, got a nasty case of the flu. During this period I had extremely exacerbated back symptoms as my long term SI Joint inflammation was repeatedly aggravated due to persistent coughing alongside little movement due to the sheer amount of pain I would experience. It got me thinking, as the levels of discomfort I was experiencing and immobility I was experiencing was not tolerable long term. During my daily life, I have pain free periods luckily, during activities like walking. I unfortunately cannot tolerate sitting at all, with pain levels frequenting the 5.5-7 /10 range. What consistent pain level would you consider to be not worth living with? For people who do have that life experience, I feel like it’s cruel to keep them in this world.