I would talk to your doctor as soon as possible, the sickness and nausea is very normal but the dizziness could be a sign of dehydration.
You may want to go to urgent care for IV FLUIDS and a nausea medication to help stop the puking long enough for you to try to eat something small and nutritious ... The consistent puking n inability to even hold water can cause imbalance in electrolytes and make you weak..... HYPEREMESIS GRAVIDARUM is a problem some pregnant woman experience CONSTANT vomiting sometimes weeks or even far off into 6,7 months...... So women that experience the non stop puking seek assistance with there MD for ways to control nausea and vomiting so your body n baby can get nutrients from your meals. Good luck on getting it under control and feeling better to enjoy ur pregnancy