morpine sulfate

i have been using morpine 30mg twice a day and morpine 15mg once a day and oxycodone 5mg as a breakthrough medication anyway i had a car accident and had a serious head injury today i went to a new doctor cause i moved to a new state and he dropped all of the meds and now giving me hydrocodone 200/7.5mg i am to take it every six hours or four times a day i still go through serious pain in my head to where i can barely get out of bed and function i told the doctor the hydrocodone doesn't work for the pain that i have and it upsets my stomach terribly i've been taking morphine now since june of last year i don't know what to do i am in so much pain what can i do i also take other meds now cause i also go through seizures i feel like i am dying with just the pain alone