Brief Answer:
Severe vasocontriction and bronchospasm

Detailed Answer:
Hello

Thanks for the query

When you step out into the cold weather there occurs severe constriction of your vessels and also the brochial tubules ( tissue that is responsible for respiration). It is a normal phenomenon however it looks like it is a bit exaggerated in you.

Here is how you should go about it

1. I recommend that you take Tab Theophylline before you step out, this will counter the bronchospasm
2. Keep yourself warm with multiple layers of clothing including gloves
3. Avoid stepping out in cold climate if possible
4. Ask your doctor to rule out lung pathology like bronchial asthma and bronchitis by getting a pulmonary function test done

I hope I was of help, if you have any further queries please get back to me

Regards

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