Hello, You have been using e cigarettes and presently experienced large buzz followed with numbing down while showering. You felt like getting a little disoriented. You have a headache. You have experienced side effects of using e-cigarettes, e-cigarettes may cause immediate side effects and in long term adversely affect health. Try to withdraw slowly from e-cigarettes and go for heathy methods to de-stress your self. Nicotine in e cigarettes interfere with your memory, leads to mood disorders, poor impulse, it affects the blood pressure. E liquids with flavor are more harmful, its use affects the lining of the blood vessels and stiffens them, making the person prone to stroke. It may lead to development of coronary artery disease. Avoid using e cigarettes as it causes serious side effects like heart, lung and neurological injuries that could cause long-term problems. You are suggested to get clinically examined by a GP, get a complete medical check up done. You will have to get the required blood tests and imaging tests (if required) to detect any injury done to your heart, lungs or neurological system so that treatment can be started at the earliest. Take care. Hope I have answered your question. Let me know if I can assist you further. Regards, Dr. Nupur K., General & Family Physician