Suggest Treatments For Muscle Tension In My Back

i have costocondritis, also major muscle tension in my back, i get physio treatments for this. but now apparently i have a crooked spine, uneven shoulders. i was also in a car accident 3 months ago and suffered terrible whiplash. I go to physio at the moment twice a week. are all this things related to each other? also my job is hairdressing. i use all the muscles bones etc above in my job for the past 8 years