You're high.
I have a funny anecdote about that one. Back when I was taking risperidone for a psychotic break that happened about 5 months earlier, I reported problems to my psychiatrist (which later turned out to stem from the medication itself and NOT from the psychosis), who recommended I check myself in to a mental hospital to get examined. I ended up staying there for about 3 weeks.
While I was there I was urine tested 5 times, because the staff there was convinced I was high, even though I had been clean for at least 4 months. My parents started getting suspicious too, presumably after the staff told them about it. After a while I got sick of it, stormed into the doctor's office, and asked them why they were being so suspicious.
Apparently my pupils look really dilated (they always have, since I was born) and they had found suspicious pills in my room which were actually L-tryptophan.