Thanks for writing to us.
If you have taken plan B
within 48 hours then it is 90% effective in preventing the pregnancy
. The symptoms that you are having now are related to the side effects of I- pill. These are likely to subside in next 2-3 days.
I hope this information has been both informative and helpful for you. You can consult me again directly through my profile URL http://bit.ly/Dr-Rakhi-Tayal