You teeth might be sensitive to cold that is why you are getting that abnormal feeling. I would recommend you the get your teeth professionally cleaned for a periodontist and then start using anti-sensitivie tooth paste like sensodyne. Do flossing and mouthwash gargles daily. Avoid drinking anything too cold or too hot.
Continue this treatment for couple of weeks and hopefully your problem will be resolved. Also visit an endodontist to see any cavities builiding up as sometimes tooth sensitivity can be due to carious tooth. For more info visit the link...http://www.identalhub.com/article_understanding-hypersenstivity-216.aspx
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