Hi , you may be low on nutrients and dehydrated. Make sure that you are eatting well , taking prenatals and drinking plenty of water .
I had dizziness with both my pregnancys never any morning sickness. Just always being light headed. Doctor says its normal. But sometimes it could be your iron.
Its is normal it happens to me sumtims its just pregnancy symptoms you could even ask your doctor about it 2 but gets some.rest and relax
I have had dizziness and im 8 weeks I think if you drink lots of water you should be ok otherwise if it doesn't get better I would contact your OBGYN
I would sleep and call your OBGYN tomorrow or if you are super worried call the doctors office and get advice from the on call dr