32 wks pregnant with vomiting diarrhea and migraine?

I've had a migraine for 3 days now, head pounds when I walk or lay down. Feel very dizzy. Have diarrhea and vomiting also and not sure if I should go to hospital ASAP or just wait a few hours until my obstetrician appointment and see what he says. Is my 2nd pregnancy and Havnt had any problems so far. Only thing is a reduced amount of Braxton hicks :/ I used to get them a lot but Havnt had any for about a week maybe a little more. Baby Is still moving heaps though. Any advice???