You don't say where your back hurts, but when I've tweaked my lower back, stretching does make it go away, although it might take a couple of days.
...
I've done both; I sometimes don't realize I have pain until after I start squatting. It doesn't hurt enough to stop, but it just causes a flinch as I...
I have that sometimes and, strangely, I find that it usually goes away if I massage the soft tissue around the patella. Also helpful is to treat the...