DougMC, you say its feels weird and uncomfortable. Perhaps its the bike setup. When the handlebars are high, then when you stand, you do not get that proper arm extension. Go back to your bike fitter for another session. Make sure you're on the rollers or trainer to see how you fit while standing.

Just a slight adjustment makes a big difference. While you're at it, on the rollers or trainer, keep on the standing position and let the fitter see how you're doing. Many fitters (the good ones) are also coaches. You might get some pointers.