Meegm, dizziness can be a normal part of pregnancy but you should mention it to your care giver as it could be a sign of something else. It *could* be related to blood pressure changes so definately mention it to your caregiver especially if you have a history of BP issues. If you have any other symptoms like spotted vision or sudden swelling, call your caregiver straight away and run it past them.
In the meantime, just try and relax and let it pass. Keep movements as slow and as fluid as possible (no jumping about or jerking).

HTH

MG