I've been having lower back pain for a few months now probably. I have no idea why. It feels more like cramping than anything. It haven't been horrible, but today I just want to sit down its bothering me some. Any ideas why? 5 days away from af so not that, highly doubt I'm pregnant no other syptoms&havent been able to get pregnant, already checked for uti&kidneys not that. It's been a little while since I've been to the chrio but usually they don't say much about my lower back.