When i stand up, i go lightheaded, dizzy and my eyesight goes blurry. what are these symptoms of?

Many reasons: There can be many reasons for this. A common reason includes orthostatic hypotension from dehydration, in which case adequate hydration and getting up slowly and pausing for 15-30 seconds before walking may help. Another reason can be new medications. If this persists or gets worse, you should see your PCP. Further reading: http://www.nlm.nih.gov/medlineplus/dizzinessandvertigo.html