My right hand has been dead/numb/'fell asleep' since the first exacerbation. If I'm really stressed, physically or emotionally, it'll creep all the way up to my shoulder.

You may be having another exacerbation, or psuedoexacerbation. Or it could be something completely different and potentially worse.

Either way, I hope you get relief soon and don't wait to see the doc if it persisits.