What is the reason for my recurrent chronic illness during winters?

Hi doctor,

I have been ill for four weeks, and I had to stop using my treadmill. I tend to get sick every winter, despite all precautions. I usually recover in two weeks but not this time. I have no sore throat, fever, or cough, but I sneeze twice a day. My feet and hands get cold, my arms and legs ache in the middle of the night, and my face feels flush almost all the time. I have a good appetite.

Last year I was diagnosed with a sensitivity to mold. So I use Nasacort twice a day and take Xyzal. I just had a series of blood tests, including CK, Complete metabolic Panel, CBC with differential count, TSH, FT4, and FT3. Everything was normal. Also, I have had all three Moderna shots, the flu vaccine, and have been tested twice in the last two weeks for Covid.

Would you please give me some suggestions?

Hi doctor,

I took Levocetirizine 10 mg once a day before sleeping for two years. I am retired and in my house for most of the week. It is true I get this malady every winter, but I wear heavy clothing outside, and my house is well heated. So I do not understand the reason for cold sensitivity. Kindly help.