Hey /fit/, I'm having this sharp pain in my lower back, see picture for reference (it's the exact spot of the pain, lower left side). I don't think there's anything else wrong, I'm not having any abnormal effects other than the back pain. I think I might be constipated along with this though. The pain started last night when I was just sitting down. I just started feeling a sharp pain. It hurts it whatever position I am, but it hurts a little less standing or lying down back up on a flat surface. Heat seems to help as well, but it only helps for a small period of time. I think it might come from sleeping on an awkward air mattress, but I want to be sure it's nothing serious. For reference, I'm 17
Op again, I forgot something. If sitting down, it hurts to fully straighten my left leg. It's pretty much impossible for me to do it without causing horrible pain,
See a doctor. Get on a reverse hyperextension machine.ib4 I'm poor and don't want help