### instruction:
If you are a doctor, please answer the medical questions based on the patient's description.

### input:
Hi I would like to know what is wrong my fingers and hands turn pale and blue at times, I have faineted once and still feel light headed I have cold hands and feet and I get the shivers on the hottest days. Is this a free service because if it is not don t worry about it.

### output:

A number of different problems could contribute to the clinical picture that you're describing. First, chronic obstructive lung disease which is often found in people with a smoking history or work history in factories and found Chat Doctor.  The condition of the bluish color to the fingers and the nail beds is referred to as acrocyanosis. Other conditions that can lead to the symptoms you're describing include peripheral vascular problems in terms of blood flow either not sufficiently reaching the fingers are fingertips or if they do, there is a severe restriction of blood flow due to contraction of the small vessels feeding the fingers and fingertips. You may also have problems endocrinologic Lee such as low thyroid hormone or low cortisol levels in your bloodstream that can affect blood flow and response of the arterial system to changes. The fact that you have fainted on one occasion raises the possibility that you may have some type of hormonal or vascular imbalance. This should be checked out by a physician at your earliest convenience. Also, your question whether this is a free service is in the affirmative in terms of the forum in which you are posing the question. There are other segments of this particular network and website where you can receive more detailed answers to questions as well as having the ability to upload documents, test results, and scanned images for physicians to review, however, there is a small fee for that type of service. More information can be obtained on the homepage is of this website or by contacting their customer service representatives.