What do you want to know about toothaches? I can tell you EVERYTHING!!!!!!!!
I'd had a cavity in my wisdom tooth and it caused all sorts of horrendous pain. I had earaches, headaches, shoulder and arm pain, shooting pains in my cheeks that was as if someone was sending electric currents through my face. I have endured (in the last year) possibly 6 months of tooth pain. FOUR extractions later i am (touch wood) tooth pain free. I seriously believed that when my wisdom tooth needed to be taken out i would die before it was done. I was in that much pain i cried constantly, lived off doctors perscribed STRONG pain meds (which didn't work in the end), didn't sleep, didn't eat, couldn't drink hot drinks or very cold drinks, it was (next to my throat abscess) the worst pain i've ever encountered, worse than child birth!!!!
The pain you are experiencing is completely normal.
When mine were coming through i could barely open my mouth, it even caused me to give up my 2 a day smoking habit because the pain of holding the ciggie in my mouth was too much to bare.
I used a wonderful local anethestic gel from the pharmacy called Orejel or something like that. Its numbs the area wonderfully. During my tooth agony i've tried everything, but that IS the best.