Epidural back pain and neck

My baby was born 8 days ago, I had an epidural witch took 3 shots to get it right. Two nights ago I've been waking up well rested and right about at the end of my day 7 8pm my back starts to hurt then my neck starts to do some weird spasm on the right side of my beck. They are painful and every time I sit or stand up my neck spasms and I tense up all around my shoulder. Please let me know if I'm not the only one and if I should worry, or just go to the doctor.