I feel too much thirsty and feel thirsty even after drinking water. I have to drink too much water. This is happening since a few days. Is it due to start of summer or due to some serious condition?
You don't mention your age or any other symptoms. Have you been loosing weight? Do you get up at night frequently to urinate? Have you been extremely fatigued? If the answer is yes to these questions then I would definitely seek medical advise ASAP. In my professional experience these are definite symptoms of diabetes. Type I of course requires immediate insulin as the symptoms are usually more pronounced. Type II is usually a gradual onset and usually more manageable. Without any more background information your question is rather vague and lacking in substantial history.