Hello, Welcome to HCM, The history and symptoms suggests me that you may be having the Raynaud phenomenon. It is a condition in which there is excessive reduced blood flow in response to cold or emotional stress. It is a hyperactivation of the sympathetic nervous system causing extreme vasoconstriction of the peripheral blood vessels, leading to tissue hypoxia and producing these symptoms. This can be managed by avoiding triggers such as cold, keeping a warm body temperature and avoiding smoking including passive smoking. Drugs like nifedipine, amlodipine or diltiazem is helpful for moderate or severe Raynaud phenomenon. Thank you.