<s>[INST] IM 62 and have pretty much had this prolem all my life. Other people get brain freeze when eating or drinking cold, like a milk shake or ice cream. I have scoliosis, hypertension, hypothyroidism,borderline diabetes, GERD, high cholesterole, controlled, 5ft 5 in, 200 pounds. any clue. It is a sharp, throbbing, excruciating pain in the middle of my back that lasts as long as the cold is there. That is if I drink it too fast or dont take breaks while drinking it. [/INST] Thanks for query.This may be sudden reaction to cold and does not have any significance.may be due to GERD  and manage for GERD. Thanks </s>