My friend steven has been doing heroin for a year now, and was doing ice five years until he found heroin. He went from smoking to slamming in January. He's shot up everyday since. Up to seven times in a day. He tried to quit but gets so sick he feels sobriety is unreachable. He muscles and IVs the heroin. Last night steven had the last of his heroin (mostly cleaned the cotton) and had three lines of ice. He hasn't done ice in a few months. He woke up to blurred vision, and not being able to read or focus on anything up close. Far eyesight is fine though. And usually when using heroin and meth in conjunction his pupils are pinpoint, but right now they are dilated. He is dope sick today, and feels like hell. He's overdosed on meth and Xanax before but never heroin. Could these be overdose Symptoms? Please let me know. Any insight is helpful. Thank you.