<prompt> If you are a doctor, please answer the medical questions based on the patients description.i get lightheaded when i drink water and it doesn t happen with any other drink. It is only momentary while I m drinking swallowing and not breathing . As soon as I take a breath it goes away. I m just curious because I can drink any other liquid the same way and it doesn t have this effect. It s always happened to me.  <response>: Thanks for your query, Lightheadedness usually is not a cause for concern unless it is severe, does not go away, or occurs with other symptoms such as an irregular heartbeat or fainting. Lightheadedness can lead to falls and other injuries. Protect yourself from injury if you feel lightheaded: Lie down for a minute or two. This will allow more blood to flow to your brain. After lying down, sit up slowly and remain sitting for 1 to 2 minutes before slowly standing up. Rest. It is not unusual to develop lightheadedness during some viral illnesses, such as a cold or the flu. Resting will help prevent attacks of lightheadedness. Do not Chat Doctor. Do not use substances that can affect your circulation, including caffeine, tobacco, alcohol, and illegal 