I have been recently diagnosed with a moderate disc herniation at L5-S1 with effacement of the ventral sac along with a nice-sized bulge at L4-5. The only real symptoms I get from this is left thigh numbness and something else, but I am uncertain if this relates to the herniation or bulge. Lately, I have been waking up with severe upper rib pain...I mean bad. I woke up this morning and went to get up and the pain nearly brought me to my knees. Takes a few minutes and passes but whoa! Just this past Friday (today is Tuesday), I had an epidural steroid injection into my lumbar spine; this was supposed to help with symptomatology, but quite frankly, I am noticing no difference whatsoever. My question is, what is that rib pain coming from?