Deep Tissue Massage

How is it really supposed to feel?

So I went to my first one yesterday, really not knowing what to expect. There definitely was a little language barrier but when she asked me how I want it, i just said strong because im experiencing back/hip pain. Boy did I eat my words! The most unassuming little asian lady went to freakin work, and it was painful. She twisted me, got on the poles, and I was sweating! She kept telling me to relax and lady it was not relaxing. I understand some pressure points may be painful, but how painful on a scale of 1-10? And is the majority of the massage being completed with elbows?!!

What should I really be expecting?