He says he has calmed down, however. “It’s just from having a number of years playing at the top level. It is a technical sport but you also just need experience. We’re lucky in the front row where you can keep getting better the older you get. “Sometimes my focus has been lacking because it’s very easy to get carried away with the emotion of the game, especially at Test level where you’re playing in front of enormous crowds and playing the anthem at the start. It’s very easy to lose focus and not do the right thing at the right time. Over the years I’ve learned to stop getting carried away so much and just make sure I’m switched on at the right times.”
Not surprisingly, no elevated risk was found in the three studies listed at bottom, which looked at urine metabolite levels rather than blood THC. This confirms that urine testing has no bearing on driving impairment. Despite this fact, US Department of Transportation regulations force millions of commercial drivers to submit to random urine testing. The government has never produced convincing scientific evidence that this policy is necessary or effective to protect public safety. But they're the government, so they don't have to provide any evidence!
Dizziness is a general, non-specific term often used to describe a variety of associated symptoms, such as feeling faint, lightheaded, nauseous, weak, or unsteady. If your dizziness is creating the sense that you or your surroundings are spinning, then that is more accurately called vertigo.  Dizziness is a common reason for doctor visits and is certainly uncomfortable and/or annoying to experience, but it's unlikely to represent a serious, life-threatening condition. There are many ways to overcome dizziness at home, but be aware of the "red flags" that signal the need for medical intervention.