anesthesia
"If you have a history of low blood pressure, do not let your doctor use this on you. I just had a diagnostic endoscopy and colonoscopy (same time), and they used propofol, which works wonders for making you totally unaware during the procedure BUT afterwards my BP was extremely low which has caused tachycardia. It has been a day and I still have tachycardia (heart rate over 100/bpm resting) due to low blood pressure. I feel exhausted and can barely do anything without spiking my heart rate to 140. I have no idea how long this is going to last, but be aware that this is a possibility for you if this drug is used for your anaesthesia."