The vestibular system includes the parts of the inner ear and brain that help control balance and eye movements. The type and severity of vestibular disorder symptoms can vary considerably, and be frightening and difficult to describe.
Heroin can be detected in urine for 1-2 days. However, heroin will show up in the urine for longer periods if taken in higher amounts, or if someone is a habitual heroin abuser. Sometimes heroin can linger in the body longer depending on factors like weight or body mass.
And while hair-based drug tests are fairly accurate, tests of blood and urine are simply unable to detect the vast majority of drugs, so long as you haven't used for about a week. Heroin, for example, is generally undetectable in urine after three to five days. As the chart below shows, traces of drugs like LSD, morphine, heroin, amphetamines, and alcohol all remain in the blood for just 12 hours or less: Dragan Radovanovic/Business Insider.