How To Treat Chest Pain?

i was in a car accident 3 years ago,from that i started having pain in the chess very bad,like a long ice pick was being stabbed in me, hard time breathing,been to physical therapy for six months and do streches every day,but still every time i lay down or sit to long or move to fast i get that stabbing pain,it takes so much out of me,i need help talking to my docter about pain meds ,whenever i tell her about my pain she says no it cant be from the accident because it was over 3 years ago,but i know it is because thats when it started,my medical insurance wont pay her if she says it was from that i geusse because they didnt pay her before and she wanted me to pay for everything that was done and get reimbursed from car insurance,i also was diagnosed from a family docter 8 years ago with fibromyalgia ,please i;m in alot of pain and it makes thinking straight hard as well,i dont want to take pills at all because i have a hard time swallowing them i almost always choke,but i need real help