So, Doc says "totally healthy" and "has you wrapped around his finger, but trust me, I understand" and "come back if things don't start getting better fairly quickly"
The fever was almost certainly the vax.
Got some additional info about the No Good Very Bad Day. Long story short, they broke a really important meds-related protocol in a subtle way (a 5 sec vs 2 min thing). Once I cut DH of in the middle of the sentence to say that was "totally unacceptable" in a rather harse tone of voice, he decided maybe he'd been right to be angry about it.
And then they called and asked us to change said protocol because they hadn't been able to give the meds "when he needed them." So, like, we informed them that that was a tantrum (ok, meltdown, but they understand "tantrum") and HE DID NOT NEED THE MEDS (For cryin' out loud). And, by the way, why exactly was he asking for his meds by a name we don't use for them, a word he uses (accurately) for something else? eh?
Ug. Good riddance to a bad situation. Now I just have to not let DS know quite how annoyed I am by the way they handled his emotions.
The good news on toilet training is that he's back to 100%. (He's 3:1, but we EC'd, and he's been 95% since he was 11 mos, but... yeah, long, l o n g story) Lyme is generally something people get when they've been out of the country around here

I'm venting. Thank you for putting up with my venting. I really feal like I need to keep an even keel for him, and... uh... yeah. Not easy right 'bout now.
Still some symptoms, but the drop off was crazy steep, and now we seem to be on a bit of a long tail. I think the advent of a particularly embarrasing (to the parent) lovey might be semi-permanant. Just my gut feeling, there. He never had any lovies before, at least now we have a lovy story! Sheesh.
-Mich