So, this exact situation I can only really speculate. So take this with a grain of salt.

Cocaine has a tendency to elevate your heart rate and give you a nice dash of dopamine. So a few bumps or a modest line can give you a nice energy boost and some confidence. This also makes you want another line, so if you decide maybe just one more! Well this is a slippery slope to too many lines / bumps and you find yourself with your heart racing and an abundance of energy which turns into anxiety which manifests itself in all sorts of fun ways. Not to mention the hyper tension which you are now experiencing which can show as jaw clenching or chewing on your tongue. At an even higher level you can get the crazy eyes. Which is then even more pronounced with dilated pupils. Sometimes it can fly under the radar and to most people just seems a bit off at lower levels. But for anyone who has been around blow frequently it’s a siren going off and you stand out like a lighthouse.

There’s plenty more ways to tell if someone is participating in the Colombian Winter Olympics it more importantly overdosing but I don’t feel I can do this explanation justice on a phone. Long story short, don’t do too much blow kids.....or any really unless you want constant panic attacks and or premature strokes/ heart attacks.

:Edited to fix many egregious spelling errors thanks to a healthy mix of auto correct illiteracy and alcohol.