How is the GDP growing when nothing else seems to be? We've had strong GDP growth all three quarters this year. To me, that would indicate that, in at least some areas, we should be seeing growth. However, from my extremely ignorant armchair, it doesn't look like that's happening.  

Wage growth has held steady, the DOW, S&amp;P 500, and NASDAQ are all roughly even year-to-date, and the deficit has grown 17%. Even the trade deficit is growing. This confuses me. Though not perfectly correlated, I thought the GDP would at least be a strong indicator of these other financial components (or the other way around).

To grossly (pun unintended) oversimplify my point: it sounds to me like the value of America has gone up, but there's somehow less money in America. 

Am I missing something? How can the GDP be consistently growing at a rapid rate when nothing else seems to be?
There's a bit to unpack here.

Consistent wage growth seems in line with rising GDP. So does a steadily falling unemployment rate.

For other economic measures, the stock market is a whole other animal. It often responds to outside global events that aren't solely economic in nature. It may also be affected by the Federal Reserve's desire to steadily increase the interest rate, though we would expect that to also affect unemployment somewhat perhaps.

The most interesting point of contention here is the trade deficit. It's a common misconception that high trade deficits should imply slower GDP growth. During the Great Depression we ran a trade surplus. During 2001 and 2009, with some of the weakest GDP growth, we also had small trade deficits. One possibility as to why we are running a trade deficit is that with a booming US economy, domestic production demands more inputs, which we have to get from abroad for at least a little bit.

It's not really a matter of "less money in the economy" at the end of the day. You can also consider the typical textbook expression for calculating GDP:

$Y = C + I + G + (X - M)$

Where $Y$ is in GDP and $(X - M)$ is exports minus imports. From this equation, it looks like the more we import, the lower GDP gets, so if we end up running a trade deficit because imports keep rising or "money leaves the economy", then we should have smaller GDP.

What's easy to forget is that we have to do something with these imports. We either consume them, use them for investments, or the government buys them ($C, I, G$), so subtracting imports from the measure of GDP is just a way of preventing double counting.