How did you feel while taking the meds? And, how long have you been on them?
I think you will be OK in a while, do things that are comforting, coddle yourself, and do call your doctor is it continues, or worsens---you have the choice to stop meds, a good doc will help you do that in a way that minimizes the effects....(((((((((((big hug))))))))))))
It would be ok to take OTC meds for the symptoms of nausea/headache. Also, be sure you are well hydrated, eating well, and sleeping is OK for now.