i’ve been having back pain. and on my sides at my hips and my ribs. I feel like I need to pee all the time, there is no stinging or burning though. i’m bloated. I took a plan b and started my birth control back normally & had a 7-8 day period that was heavy. I don’t think i’m pregnant but i’m not sure what could be wrong. Kidney stones? All the hormones? Has anyone experienced this?