The verdict at the doctors

I have just met the nicest and sweetest doctor at the local emergency centre. He was nice, polite, listened and even cracked some jokes.
I felt that he cared and took me serious. Ok ok my condition might have been quite serious to, but still I felt cared for.

The diagnosis is eyeflimmer migraine (think its called this in english), but they can't be sure. I have now been given som medication and ordered rest for the rest of the day. Should there be any change in how I feel I have to go to the ER straight away without hesitation.