Ok, It's really simple. But sometimes when I IV coke, never to large of amounts. 5-10 dollars worth (yes we have 5 and 10 bags of coke strictly for the IV users) But on occasion I get a small dull pain in the center of my chest that lasts a second or so then goes away and I might notive it 1 or two more times until I load up my next shot. Lots of people tell me me its common. I'm just curious if this is normal for me to feel like this

One of the many reasons I stopped fucking with that stuff.