Has anyone ever suffered with bad acid when taking these?

the reason i ask is because i am sure that hese have cuased me to suffer...I started taking these for migraines, first 2 i took i was fine, few days later i took 2 and i was fine.. then few days later i took another 2 and within 40 mins ift felt like someone had kicked me full force? and ive been suffering ever since.. im now taking omeprazole 20 mg..

anyone have any experience with co codamol ? can it actually be the cause?