Dizziness and pregnancy

So I am 10w3d going by last ultrasound, and I know dizziness, lightheadedness, and even fainting are normal during pregnancy, but I am having major problems with the dizziness even if I am just sitting on the couch not doing anything. I talked to the NP when I went for my appt a couple of days ago, and all she really said was to snack frequently, which I have done since I found out I was pregnant. Is there anything else I can do that might help? It's starting to make working very hard