I have to agree; it sounds like either sciatica or sacroileac (SI) pain. I had terrible SI pain and ended up needing to see an orthopedic physical therapist to realign everything. The good news is it helped after 3 visits to her. If the pain keeps up, definitely, you may need to see a chiropractor or orthopedic physical therapist to get everything back into alignment.
Is the pain worse doing certain activities? For example, my pain was the worst (shooting pains that made me want to cry or scream) when walking, getting out of bed, rolling over, standing up from sitting, etc., etc. Or is it constant?
I hope you feel better soon. ((((HUGS))))