Hi Rayla, i'm sorry to hear you are going through this.
When i was pg with #2 i had constant migraines from 13 weeks until i had him, it was a nightmare, i had to get shots to relieve the pain, i also took panedeine forte.
Deffinately talk to your Dr or Midwife, they should be able to help.

You could also try using a warm wheatbag over your eyes, this sometimes helped me.

I hope it eases for you soon hun