<s>[INST] Hi,I both upper arms feels cold usually during the sleep, I feel same thing during the day but it doesnt bother me much. I have an allergy to dust, palm, sour grape almost every fragrance, I used to think that is way my upper arm feels cold. Even though room temperature is about 75 F or above, still my upper arm feels same thing. What do you think.Thanks in advance! [/INST] Hello, I have studied your case. As per your symptoms neck pain can be due to diffuse disc bulge compressing your cervical spine. Another possibility of thoracic outlet obstruction leading to vascular compromise leading to cold feeling. Some medication like methylcobalamine with muscle relaxant and analgesic will reduce pain, you can take them consulting your treating doctor. MRI and color Doppler will help in diagnosis. Also check your it B12 in your blood. Hope this helps. Wish you speedy recovery.  Take care </s>