I always thought of myself having an extremely high tolerance.  I've done 3 grams and more in an 8 hr period (at work) and never had any issues.  Just a calming and euphoric feeling.  Today I did a little more than 1 gram in a little less than a 5 hr period and I'm nauseous and throwing up.  Every time I stand up I get dizzy and throw up. This is a normal amount for me when I'm relaxing and I normally go to sleep or at least rest after.  But today I can't . I'm feeling sick and can't stay calm. My heart is racing. I just want to rest.