Flu. Essential oils can be used as an alternative treatment for a variety of problems - and if looking for a specific problem area please use our search page to find relevant information. What is flu? Flu is much more severe than a cold, but tends to exhibit similar symptoms.
On cars we service at the suggested service intervals of 7,500 or 10,000 miles, we can estimate the remaining mileage quite well. As far as replacing the brake discs, there is a 'wear limit' for brake disc thickness particular to the particular vehicle. If your discs are worn to that point, they must be replaced. IF they are not worn to that limit, we would resurface the discs, IF they will still be above the service limit after resurfacing.
I'm at 120k on the original front pads on my ES300, rears needed replacement at 80k. In contrast, our Suburban used them up every 30-40k. Your use, and wear, is in that average range of 20,000 to 50,000 miles to brake wear-out. Mail carriers measure their time, 'til they need new brake pads, in WEEKS, not miles.