A few times, I've had aching afterward. On one occasion, I think the nurse just did a poor job. On another, I did it myself and was all tensed up. I injected just as my ex opened the front door, after he promised to call before coming home. Boy, was I pissed. And he didn't even apologize. Jerk.
A few weeks ago, I hit a nerve for the first time. Holy Mary mother of god. I yanked that sucker out so fast...and started all over again on the other side. But the pain actually didn't last that long.
On the other hand, I haven't forgotten that experience, and I'm starting to lose my nerve. Last weekend, I had to poke myself four times, and switch sides again, before getting the needle in.
I hope that doesn't happen tomorrow.