Help, I have Mystery Wrist Pain and Swelling and no answers

[Ams151]

Hey all,
About a month ago, I woke up with some pretty sharp wrist pain in my left wrist (I am right handed) with some swelling over the thumb side of my wrist. It is very localized pain and swelling, radiating from just behind my wrist bone to the base of my thumb. It is very painful to move, touching my thumb to my fingertips, making a fist, making a pinching motion with my thumb and forefinger and dorsoflexion of my hand at the wrist (limited range of motion here) illicit a very sharp pain in that same place, just behind my wristbone. It is painful to the touch as well. Here's the really weird thing: I don't remember any trauma to it. I have never injured it before in my life. Ice, ibuprofen, and wrist braces all seem very ineffective. I am 26, healthy and active with no history of any significant illness. I thought it would go away, or improve or anything but it seems like it stays the same and sometimes I think it's getting worse. I don't know what to do, nobody has been able to give me answers.