sciatic nerve

Hi,
well I'm doing this weight loss program and I'm taking this IM shot once a week, well I barely started this month. Well instead of me having to go to the clinic every week I just bought all the injections for this month and my mom would put on on me. Well last Tuesday was my first shot given by her. She told me to lie down because she didn't know how to give it on my buttocks with me standing up so I did just that. Well a few minutes after the shot was given to me my butt cheek was numb, and now it still hurts, I figured it would go away on its own but it hasn't yet, sometimes when I turn over too quick it hurts as if I had something in there, I'm scared she might have hit my sciatic nerve, and if she did will the pain ever go away, its no longer numb just sometimes I can feel the back of my thigh being numb but not all the time. If she hit my sciatic nerve. Will the pain go away on its own or should I seek a special doctor for this? I don't know what to do!!!