Amanda Becker. If both of your feet are swollen and none of the above criteria apply, you could have a circulation disorder such as varicose veins, a. 6. Prescription medication. Various prescription medications are a common cause of hot flushes apart from menopause. "For example opiates, nitrates, SSRIs, calcium channel blockers, GnRH antagonists, levodopa, antioestrogen, and selective estrogen receptor modulators (SERMs)," recalls Dr Lee. It's all to do with how they react within the body.