I know the ups and downs of caffeine and I drink 1 cup of the good stuff in the late morning and I feel a lift in my knee and body pain. I drink no sodas or any other caffeine stuff but this 1 cup daily. I'm on blood pressure meds and have been for many years and don't worry about this and 1 cup of good coffee.

18 Caffeine Health Benefits + Side Effects - SelfHacked

As usual do your research and talk to your doctor ... I'm just giving my report as it benefits the pain I live with. And I do take low dose ibuprofen every 6 hrs... so I'm cautious of what I do but would not be walking if I didn't do what I do.