can a migraine have no pain and just be nausea and vomiting?

sorry just trying to understand something so I can understand why my doctor is having me take migraine relief for what I feel is not a migraine.

have a long history of migraines with aura, I know my triggers, know how to tell when it's coming on and what all my symptoms are. I've recently had a lot of bouts of nausea and vomiting but with no aura, no head pain and no sensitivity to light or noise and nothing I know of has triggered them.

my doctors given me eletriptan and told me to take it when I have these nausea bouts cause it'll fix them. trying to understand if he thinks this is a type of migraine? can migraines present this way? only have experience with aura, pain, sensitivity, nausea etc at the same time so trying to figure it all out.

tia