Teen behavior-drawing mushrooms

Hi Ladies, I thought about posting on the teen forum but this one seems to get more of a response. I don't come here as often as I used to but I still recognize some of the names here ;) Anyhow, my 16 year old daughter is very artistic. Recently, most of her drawings are what she refers to on her myspace page as "trippy". She has Bob Marley and Sublime pictures on it and in her room as well. Most of her drawings now have mushrooms in them. The mushrooms have faces and the art is identical to the drawings her Dad used to draw when we were in high school. Her Dad at that time (and still to this day) smoked a lot of pot and did in fact do "shrooms". My problem is do I accuse or suspect this is what she is doing also, based on her drawings? I don't like them and when I talk to her about it, she gets upset, rolls her eyes and doesn't want to talk about it. She says I'm insulting her, and can't believe I would even think that way. But I also see some of the people she associates with on her myspace and some of them do talk about smoking weed. What is a parent supposed to think?! I don't know if it would be too drastic and breaking a major trust if I were to test her for drugs, or if I should just watch out for other behaviors? Counseling? Normal teen behavior? I just don't know which way to go with this. You might read this and think I'm ignorant! HELP!

[K1990]

I think you should have her drug tested!  If she has nothing to hide, she wont mind.  She is getting so upset because she is doing something wrong and I see a comment from someone else, does your daughter know your on medhelp?

[April2]

I don't think that was her daughter. She posted this some time ago back in January. Whoever this person is they sure have a lot of anger and hatred in them. How sad.

[K1990]

I totally didnt even see the date, I need to look at that more often.  Thanks April.