Hi, Thanks for writing in. Low iron levels can be cause for dizziness. you can correct it with iron supplements like orofer-xt for 3 months and get iron levels checked again at the end of 3 months. Other cause could be orthostatic hypotension. Essentially what this means is...when you are lying flat, your heart is not having to pump against gravity, so it doesn t pump quite as hard, and your blood vessels relax a little. When you stand up, all the sudden gravity starts to pull the blood towards your legs away from your heart and brain. Brain tells your heart to pump harder, and your blood vessels to contract which helps increase the blood flow to your brain (there are pressure sensors that help determine this). As this process is taking place, occassionally your will get dizzy as a result of decreased blood flow to your brain. If the pressure sensors don t work fast enough, and your brain doesn t get enough blood flow, you can actually faint. This process can be exacerbated by dehydration, so make sure you are drinking plenty of water. Also you could try sitting up from lying for a few seconds prior to standing to give your body a chance to catch-up. Other changes recommended include try moving slowly. Before getting up, breathe deeply for a few minutes. If the problem occurs when you get up from sleeping, try lying with the head of your bed slightly elevated. If you begin to get symptoms while standing, overlap your thighs and squeeze, or place one foot on a ledge or chair and lean forward as far as you can. If the dizziness persists despite these changes, I would recommend you getting checked out by your physician. Best regards, Dr. Neelam.