Is this normal or dangerous everytimemy friend shoots meth she pukes/coughs up blood??

Why do you ask?: I'm most concerned about you -- or that anyone would think it is "normal" either to vomit or cough up blood, or to inject methamphetamine in the first place. "Friends" like this will drag you down. Urge her to get help with both her habit -- which will destroy her and hurt those who care about her -- and a physician's care for what could be TB that endangers those around her. Please do this.