Mkcaouet01, welcome to the migraine.com community! We are glad you're here. Olfactory auras are not overly common, but many do experience them. Here is some information that you may find helpful. My husband occasionally smells those phantom scents during his attack cycles, but I don't have any experience with them personally. Many times the symptoms of a migraine attack can be more overwhelming than the pain piece of the attack.
https://migraine.com/migraine-symptoms/sensitivity-to-smells
https://www.mayoclinic.org/diseases-conditions/temporal-lobe-seizure/expert-answers/phantosmia/faq-20058131#:~:text=An%20olfactory%20hallucination%20(phantosmia)%20makes,in%20one%20or%20both%20nostrils.
Let us know what you think. Perhaps others will chime in with their experience and wisdom soon. Warmly, Cheryl migraine.com team