anxiety
"I am 36 and have suffered from occasional anxiety attacks since my early 20s. I get severe hot/cold sweats, tingling limbs, severe nausea/vomiting, feeling like I might crap myself, heart palpitations.  The symptoms come in increasingly bigger waves often for 6-8hrs. 

Someone finally told me about lorazepam.  I was a bit afraid to take a chemical but this time, when I was sure an attack was coming I decided to take it right away. Because of the lorazepam the attack didn't get worse.  It slowly faded till I was able to sleep it off. This is a huge difference from the hours of horrible physical symptoms I experienced in the past.  I hope that me sharing this helps you."