I have been having back pain problem for quite few years. If I stand and work for more than 2 hours, i get severe back pain that too especially at my tail bone. and once i rest in bed for 3-4 hours i will be completely normal. Now i'm at my 9th week pregnancy (2nd child), I have been facing this issue all my day after 7 weeks. The moment i wake up my tail bone gives me a sharp pain, my day is gone for a toss. I'm not able to sit at my work place, nor stand only resting in bed helps. pls help me.