Ive been an IV user for a few years now, always opiates but have started doing meth quite often the past 6 months . I always do between a ten and fifteen dollar bag. Haven't used in. 2 days, did a ten dollar shot about thirty minutes ago. Usually ill cough my ass off but I litetally felt no rush. Moments later I started feeling very shaky and slightly nauseous, random dull either pain or odd feeling like a flutter in one spot in my chest. Eyes are moving not backand forth but almost hard to focus. Idk if im panicking somehow or should i be worried?