In my (hospital-based) experience, migraine is the 3rd commonest cause of true vertigo (illusion of spinning) with 1. BPPV (benign paroxysmal positional vertigo if you ask) 2. Vestibular neuronitis (often post-viral) 4. Stroke 5. Menieres disease 6. Others including acoustic neuroma and cerebellar problems being the differentials
I spend a fair bit of time ruling out stroke in people with vertigo without clear-cut evidence of vestibular disturbance but if there are no associated other stroke symptoms (speech disturbance, double vision, visual loss, unilateral weakness, sensory loss or limb clumsiness) it's very unlikely (<5%).
If like you, the vertigo is intermittent and recurrent, especially with migrainous symptoms you can be reassured it won't be a stroke