Dostinox - lactation suppressant.

Hi all,
Long time no post.

I have a couple of questions about Dostinox. I took a one off dose at 2pm yesterday with food, as directed.

1. The fact sheet says it can cause irregular periods, specifically Dysmenorrhea. But 6 hours after I took it I got my period a week early and no pain which is very unusual.
Could that be the cause or was it just a coincidence?
2. I took it at 2 pm yesterday with food. Since then I have had nausea to the point of almost vomiting, body aches, stuffy nose, excessive tiredness, nightmares, and slight hallucination - ie lying in bed still lucid eyes open, but sort of dreaming of cartoon characters. It was quite disconcerting.

Are these normal side effects? How long is it likely to last? Is there a point going back to the doctor or do I need to just ride it out?