I should have known this would happen after last night. As noted in the previous journal entry from last night, my sister is in town and she and my mother and I went out to dinner last night. Due to mom's surgery and all, Diana insisted that mom sit in the front with her, relegating me to the back seat. Right over the wheel well. The vehicle in question was an SUV that Diana rented at the airport when she arrived yesterday morning, though I don't remember the model or the make. All I can say from the drive to and from the restaurant last night was that the vehicle had no shocks, and several times I gritted my teeth in pain as we went over a pothole or a bump or whatever. I didn't think anything of it last night.
Except that this morning I'm somewhat incapacitated. I've got the spiralling pain in my left lower back and hip, going around and down my crotch, and down the left leg, and I've got pain in the thigh muscles (both front and back or sides or whatever), and muscle spasms. Suffice it to say I'm in a good deal of discomfort this morning, the painkillers haven't helped, and I'm going back to bed for a while with an ice pack on my lower back. Hopefully that will help.
If this continues, it's going to make my week absolute hell.