I am currently a graduate student in my early twenties and have suffered from very similar symptoms from as early as I can remember. I was diagnosed with raynaud's syndrome. It is a phenomenon caused by constant and involuntary blood vessel spasms and the extremities (hands & feet) are most susceptible and are usually unbearably hot or cold, depending on the external temperature. In the summer my hands are always extremely hot and clammy and look very red at the finger tips and in the winter they are normally so cold that they feel numb and are equally clammy, but with white, blue, and sometimes red colored finger tips. If your child is complaining of overly hot or cold hands, if their hands are normally clammy to the touch, or if their hands shake uncontrollably such like a resting tremor, it is highly probable that they may have raynaud's syndrome. It's really not a debilitating ailment in terms of day to day life. There are treatments that doctors may recommend but I am fairly certain there is still no cure. If this is infact your case, I would be relieved considering it is not a very serious health problem. Hope this could be of some help!View Thread