If you have blood pressure difference between to arms , if you are getting same symptoms if you elevate the affected arm above your head straight up , if you can not feel a pulse on your wrist , if you have history of atherosclerosis or hardening of the arteries then circulatiom problem can be a concern.
If you are taking estrogen hormone pills, if you are smoker and overweight , if you have any blood clotting disorder then blood clot can be a concern.
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