Clear pee during drug test

So i don’t do drugs but i was nervous because i never did a drug test before. I had a lot of water before hand because it said to make sure i could pee because i only had 2 minutes to complete the test..

I pee and my pee was basically clear with a hint of yellow. I saw her put my urine sample in a cabinet with other peoples samples and the others looked dark yellow and pale yellow..

Should i be concerned? The lady who did mine said my pee could be to diluted?

I’m just nervous because what if it’s too diluted and they think I’m covering up?