It's so cold that my fingers are numb.

Just to give you some advice, 1 may be the root cause of your "fear of cold" at work. There may be a blood clot, which you should attach great importance to, because it is a very dangerous thing. The numbness of old people's hands and feet is basically caused by blood clots, which may happen suddenly. The numbness of hands and feet in the early stage can be cured, but a little cerebral thrombosis will suddenly stop, which is serious. . . . Moreover, the rescue time is very short. I suggest you take your mother to a hospital or clinic to take some preventive measures. Now in winter, many elderly people go for intravenous drip to prevent hypertension and cerebral thrombosis. My mother is an old doctor who runs a clinic and a pharmacy in our community. Every day, old people come to take intravenous drip to prevent it. It is good to prevent it when it is cold in winter. My personal observation is very good. Moreover, one patient was paralyzed in the middle of prevention because he did not continue to take preventive measures and saved the intravenous expenses of 50 employees. As a result, he was paralyzed after spending W's medical expenses. That is, about 1 intravenous drip every day 1 week, that is, 100, which is not very expensive. These two drugs are basically lost to the micro-brain and Xueshuantong. All I gave you was a suggestion that you go to the clinic.