I had Botox for the "11s". I vomited twice, and fell asleep (elevated) afterward. Can this negatively affect the Botox?

Assuming the Botox was injected properly, vomiting twice and sleeping with your head elevated should not cause the Botox to migrate.  However, if you continue to have concerns about your treatment, there is no substitute for an in-person consultation to go over your results. 

Thank you for your question! Really sorry to hear about the migraine. Migraines are terrible things and I hope you are feeling better now. Please see your doctor who performed the injections to let them know about your migraines. I would not expect the migraine itself to effect the efficacy of the botox. Best of luck!