It appears to me that you could be having symptoms of a very low thyroid. A low thyroid will certainly cause the coldness you are feeling. Have you had any blood work to test it? A test that is very accurate and better than blood work however is the "Broda Barnes" test. For this, you need a basal thermometer, you shake it down the night before you use so as not to move in the morning. Upon waking, you place it in your arm pit for 10 minutes, be sure not to move, the reading should be between 97.6 to 98, if it is lower, then hypothyroidism is probably the culprit. If you do have a low thyroid, there are some drugs that you can take for it.
Hope this helps and good luck and God bless.