I have been seeing this acupuncturist for several years, last week felt great. I was there this week, she has me lay on my stomach and has needles in lower back, I have sciatia, then flips me over for another 45 mins. I am usually a bit sore, but I left and got home to find a needle still in my lower left side of back,and am very sore since,is this serious? I called her and she asked if there was any bleeding, there wasn’t. How long should I expect to have pain,the pain is where I was about 6 weeks ago,just hurts! thanks,