I was helping my best friend clean her room and I found diet pills, and I confronted her about it, and she promised me that they were from a long time ago and that she wasn't taking them anymore, but I am really sensitive about that kind of thing, I almost lost my brother to them and I just really hope she is telling me the truth, how do I know for sure? What should I do?
Insist your friend on having a blood test.If your friend agrees it means he is saying the truth but if he does not agree then there is something wrong.