I'm sorry to hear you're in daily pain. It's the pits; it makes you miserable; and and then when it's lowered your mood, you feel every twinge and ache more. So it becomes a vicious circle.
Standard painkillers often don't work all that well for chronic pain (chronic in the medical sense, ie long lasting). They also have a lot of potentially nasty side effects.
I really wouldn't advise you to go down the opiate route if you can avoid it (that's codeine, dihyrocodeine, buprenorphine, oxycodone, fentanyl etc etc). Look at what's happened in America -- massive problems (for individuals and society) with addiction caused by doctors prescribing opiates.
Taking omeprazole can help protect your stomach from ibuprofen, but longterm regular ibuprofen use can cause irreversible kidney damage. That would worry me more. (The same goes for other tablets in the "ibuprofen family" - naproxen, diclofenac etc).
Pain blockers such as amitriptilline or gabapentin help some people. They can also have sideeffects +++ but not everyone suffers with that;they are worth trying. I'd avoid pregabalin if you can,. There's a reason it's a drug of choice in prisons - gets you high and is addictive!
So what else can you do? There's some truth in the suggestion that a diagnosis won't make a difference - you should treat the person, not the illness. But it might help you plan your way forwards.
Psychological intervention can help with dealing with chronic pain. You may have it for years but if you can learn ways to rule it, rather than it ruling you, then that is a less scary idea. CBT helps some people. Yoga helps some. Relaxation therapies. Anything that allows you to be mindful, be that family, hobbies, sex, anything that stops you focussing on the pain. More yoga. Regular exercise (important!), optimise your sleep patterns; don't use alcohol as a painkiller. And acknowledge the pain, not trying to fight it, but accepting that it's there, but you can work through it somehow. If you fight pain, your body and mind tense and the pain gets worse. If you can relax into it, it fades. If the pain is lowering your mood, it's well worth trying antidepressants; they are not painkillers but can boost your mood enough so that you can get back on top of the pain.
(I used to be a GP. I had a professional and personal interest in chronic pain. All the above advice is generalised, obviously, but follows official recommendations. https://www.nice.org.uk/news/article/nice-recommends-range-of-effective-treatments-for-people-with-chronic-primary-pain-and-calls-on-healthcare-professionals-to-recognise-and-treat-a-person-s-pain-as-valid-and-unique-to-them).