I did have a half glass of lemonade. Could that have done it?
I actually didn't eat breakfast that morning. I hadn't had anything to eat since the night before.
I've had that happen after putting sultanas in my cereal.
I don't think you can develop it, especially if you tested negative. That happened to me last week as well and doc said it was from what I had for breakfast (frosted flakes) so maybe it was something you had that morning! Try eating foods that are low in sugar
What did you eat or drink before you had a urine test? I ate cereal with sugar on and I had high sugar in mine but it's fine