Taking modern painkillers often results eventually in overdosing as the body gets used to them. Not recommended. I had a slow-acting food-intolerance towards raw and pasteurised dairy which led to much the same symptoms as you had, due to slowly-increasing inflammation all over my body. For example, I had a vaccination on my left shoulder so that, from puberty onwards, I was unable to sleep on my left side because of the pain. Given that food-intolerance/allergy towards raw dairy is the commonest issue in the RVAF diet community, it woul be wise to avoid it like the plague for quite some time, and forever, if your symptoms improve as a result. Also, ignore most of AV's recommendations re drinking raw veggie-juice etc. Guy-Claude-Burger's book on Instinctotherapy/Instinctotherapie is much more in line with long-term RVAFers' experiences.
Other ideas re handling pain:-
1) Try near-infrared light therapy/red light therapy devices such as found on redlightman.com and Joov. They appear to be good against pain. The alpha-stim m device is also supposed to be good against pain, though I never used it for that purpose.