Brief Answer:
There are medical conditions that cause this situation

Detailed Answer:
Hello,

I'll present you with some common or not so common conditions that may cause your mouth to feel dry and some basic directions on how to distinguish between them.
First of all, the mouth may feel dry because it is dry! This can be caused by dehydration (loss of water) by increased perspiration (physical activity, fever), drugs (diuretics for example, antihistamines, etc), diseases (diabetes mellitus or insipidus, Sjoegren, etc).
Regarding diabetes mellitus a urine test for glucose or blood glucose measurement may prove whether you've lost water in the urine due to diabetes or not. If this is the case then you should have noticed increased urine production.
Sjoegren's syndrome causes dryness in mucous membranes, particularly in the eyes and in the mouth. Eating dry food might prove difficult without drinking water. A gritty sensation is common.

Food can also cause a sense of dryness. Onions and garlic may make you feel thirsty all the time. Too much caffeine or alcohol may also cause dehydration.

The picture you've uploaded is not very clear because of the reflections but I can't see anything abnormal.

I hope you find my answer helpful!
If you'd like further information, please use your follow-up questions.

Kind Regards!

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Brief Answer:
Will you upload test results?

Detailed Answer:
Hi,

it could be helpful if you uploaded the test results. I'm not interested in sexual transmitted diseases because they are not supposed to cause this feeling (at least not without any other symptoms). I'll be more interested in your blood glucose levels, a urinalysis showing no glucose at all, if you're using too much coffee (cola drinks and tea contain caffeine too), if you're taking any drugs etc (refer to my first answer). Also please answer my comment about the gritty sensation of dry foods. Do you feel like having sand in your mouth? Do you need water to swallow the food?

I couldn't see whether your tongue is red or white which might mean fungal infection. The second picture which is much more clear, seems normal. Fungal infection may cause a burning sensation or feeling dry.

I'll be waiting for you input.

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Brief Answer:
Please exclude the most common diagnoses

Detailed Answer:
Hi,

I think you should exclude some common conditions that cause dry mouth like the ones I've mentioned and particularly diabetes which is too common to be overlooked. Checking your urine for glucose and perhaps a blood glucose measurement will prove whether your increased urination is related to the water you drunk or the opposite. When you have diabetes, you loose water in the urine. The higher the blood glucose, the more the lost water. Loosing so much water makes you feel dry and thirsty.

Your response probably excludes sjogren's syndrome (which also causes dryness) but it is still possible. There are blood tests for this condition. Anti-Ro (SS-A) and anti-La (SS-B) are the most commonly used ones.

You haven't mentioned anything about caffeine consumption.

Anyway, I've presented some of the most common causes of your feeling. If the most common organic conditions are excluded then anxiety could be the cause but this diagnosis cannot be established before all else is investigated and ruled out.

I hope I've helped!
I'll be available of course, if you have more questions.

Kind Regards!

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Brief Answer:
anxiety can cause that indeed

Detailed Answer:
Yes, it's true... anxiety may cause a lot of strange or not so strange symptoms and sometimes mimic other diseases. If you're taking drugs for depression, please be aware that some of them may also cause a feeling of dryness. Prozac is one of them.

I checked the picture. It's definitely negative but I did not expect HIV to present with a dry mouth anyway.

The best thing to do, is to visit your doctor, who can examine your mouth and prescribe tests to rule out organic conditions and if everything is OK, then managing your anxiety should be your target.

Kind Regards!

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