After 6 days, I still have a Slight Fever; it's not going away, but it's not getting any worse. It reduces my gait by half, impairs all attributes across the board (uncertain of the amount,) and appears to cap some skills at Adept, probably all of them (gm-editor isn't giving up easy information on this.) I've inspected every bit of my inventory for any traces of the sludge, but I found none. I made a little waterfall pool out of aquifer layers, and have brought along a bar of forgotten beast soap, so I should be squeaky clean.
I spun off a legends folder to update my histories and tried unretiring. I was placed in the middle of the fortress workshops as a werelizard, and bizarrely, the whole floor was occupied. I've never seen anyone in those workshops when exploring, but now everyone was there to obstruct my escape. My fever was gone, but I can't be sure whether it's because its duration expired, if it's automatically cured in retirement, or changing to wereform relieves it.
Since it isn't breaking soon, I hairpinned back to make a tour of the dwarven lands, get the poet some clothes and armor, and entertain with my excellent dancing and horrible singing and speaking. Eventually I'll reach the library to deposit my works and try to pick up something new. If the fever breaks by then, that would excellent -- I could fill out the rest of these quires. I don't have a form dedicated to my own goddess, and I've read in histories that sometimes new forms are granted after prayer or nightmares. Coincidentally mine is the goddess of nightmares, and I shall appeal to her to gift me with one.