Hey, guys. For the first time in my life, I find myself in a rather difficult situation. I suspect a family member taking meth, but I just can't tell the difference between it and other substances. Could someone in here tell me the most obvious symptoms of someone taking meth? Keep in mind that I don't believe he's been taking for too long, so it's just in the incipient phase now. Thank you in advance for your help, and hopefully I can fix this matter as soon as possible.