Back when I FIRST started weightlifting as in doing squats and deadlifts, and of course my form was crap, I was unloading the plates and as I was bending over to put a 45 down something happened in my right glute, I had tight and shooting pain in my lower-back right glute for over a month, and when it healed it would sometimes reappear out of nowhere, I didn't get it checked out or anything, all I did was
strength train the correct way, and that problem hasn't popped-up again for years, thats my experiance with a similar problem, I also had another back issue from lifting too hard,(mid/upper back) and that took 6-months to heal, how did I heal it? more
strength training, only I learned from my mistake and was MUCH smarter about it, haven't had anything reappear for quite a while now.