I just took my 13 week old on a road trip, where I nursed her in her car seat 2-3 times. It was uncomfortable on my nipple, so I insisted we stop for nursing after I tried it a few times. Now we are back home, and it is very painful to nurse dd on that side! I just had to switch her to the right because I couldn't take it, and my left side is still throbbing several minutes later.
I hope this passes quickly! I hope I don't get all engorged because I'm avoiding feeding her on that side. Ugh. I guess I just needed to whine to someone!