Your symptoms all sound familiar... Especially the anxiety. I'm having an anxiety problem right now, actually! Yes, those are all hypo symptoms, so no, you're not "weird". LOL.
For me, my worst symptom is anxiety. Everything else seems like a cakewalk compared to when I get these long waves of anxiety that seem to hit about a week or so after my period. I don't know whether it's really tied into my thyroid or if it's something else, but it's gotten a lot better since being on medication (first Levothroid, now Armour). Instead of having constant anxiety every day all the time for weeks and months on end, it comes on for a few days and then disapates. I feel pretty crappy right now, but I'm sure in a few days I'll be back to "normal" again.
I've heard some people have panic-attack like symptoms from T4 meds like Synthroid/Levothroid/Levoxyl, but you shouldn't have had that bad of a reaction after only one day! My guess is that it wasn't the meds, but your body. Stick with the meds for several weeks to get a good level in your system and then see if things don't improve. I know that when I first started my tiny dose of Levothroid back in March, by the end of the week I felt like a million bucks. Of course, a few weeks later, my body got used to the small dose and I started to bottom-out again... But those meds REALLY make a difference.
Also, some things that I've noticed really helping me with the anxiety is to cut out caffienne entirely from my diet. I've been bad in the last month and started drinking a lot of Coke and coffee (I've got a bad addiction to Vanilla Coke!) and whenever I start drinking lots of soda and coffee, sure enough, my anxiety problems start to get worse. I'm back to weaning myself off caffienne all over again...
Also, cutting out junk food has helped too. As has making sure I eat regularly and as soon as I feel hungry. I'm really bad about this... Usually I get so consumed by a project that I'll forget to eat, or I'll put it off until I'm starving and then go swing by McDonalds and not eat more than once or twice a day as a result. If I'm hungry, my anxiety gets terrible (sometimes I wonder if I'm not hypoglycemic), and if I eat starchy foods, it brings me down all right... Crashing down! It's awful, but I keep doing it to myself because I'm lazy.
Anyway, I'm just writing to let you know that I sympathise and your symptoms are pretty normal for hypothyroid people. Hope you feel better soon!