It sounds like Cannabinoid Hyperemesis Syndrome. It could also be CVS caused/irritated by marijuana use, which presents similarly to CHS.
Migraines are a common symptom of CVS, but only 30% of patients in the study that I am referencing, that had Marijuana related CVS, had a migraine as the trigger.
Cannabinoid_hyperemesis_syndrome Link
I highly suggest reading this research that I'm linking below as well. The research also explains what was effective in reducing or ending symptoms for their patients with CVS:
click here for research: Association of Marijuana Use and Cyclic Vomiting Syndrome
__________________
No ones reality is ever alike.