I have a lower left side back painn that comes and goes, it ussually comes late afternoon, night time, I have three days already with this pain. It started on Saturday around 10pm, didn't go to sleep till around 4am. On Sunday it started around 5/6 pm and I put on a ICY HOT pain relieving cream, and honestly it didn't help at all. I took tylenol pm to fall asleep, I fell asleep around 12am. On Monday I fell asleep around 11pm and didn't feel a thing.