What is multi-level arteriovenous malformation? Also known as avm? I have had several back surgeries none have relieved pain and I meet all thsymptoms

Not likely . An avm is a congenital malformation of arteries and veins where the arteries connect directly to the veins. If on the spine they can cause problems. In your case this is unlikely given that you had back surgeries and the mris performed prior to the surgeries would have detected it.