Could Pain At The Back Of Head And Nausea Be Due To Duride MR?

Yes thankyou, I take many medications, but for the last 2 days I have been taking a new prescription of Duride Tab-MR 60mg. I have a headache most of the time across the back of my head and feel nausea. No energy and have been reduced to laying in my bed, which is not like me at all. I feel like stopping taking this medicine.