That does not sound like arthritis, but anemia or some other problem, potentially a bleeding ulcer due to all that ibuprofen you have been taking…I say that from personal experience with a bleeding ulcer where I could not go up a flight of stairs…and I’d also been taking a fair amount of Aleve.
I have a lot of arthritis, but mine is worse in the spine, but my hands have a fair amount (based upon an xray looking for a possible broken bone a couple of years ago). Motion is lotion for me.
I take one 75 mg diclofenac sodium (Voltaren - another NSAID) most nights, 5 mg flexeril, 5,000-15,000 iu of Vitamin D, Vitamin B complex and Magnesium daily.
I try to go every other night on the NSAID, due to potential liver/kidney damage and also can skip the flexeril some nights.
Heat is wonderful IME. Since my back is worst, I sleep with a heating pad.
I also have a great pain mgmt doc, I get joint injections where it is worst (I’ve had my SI and facet joints done) and have done radiofrequency neurotomy (ablation of the nerves to a specific joing) to help, that has done a lot to allow me to take minimal meds.
Starting exercise always hurts, but I always feel better afterwards.
The other thing that helps, my morning coffee, for some reason, there seems to be a slight analgesic effect from the coffee, not sure if it is the caffeine, but I don’t drink it all day, just first thing in the morning.
Good luck finding the right combination for you, and yes, cold weather definitely makes it worse.