sudden wobble in normal

Took my rescue out tonight for some hands on time and noticed he is showing a slight head wobble. This is the first time I've seen this and its very minor, he is also coiling his neck up in a odd way and seems a bit disoriented. Should I worry or wait to see how he progresses? what could cause something like this? He was fine on Sat when fed him last

Neurological issues can also be caused by over heating or chemical exposure.

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He hasn't been overheated and the only chemical he's came in contact with was the last dose of flagyl. I just found this article that mentions flagyl can cause issues, the first dose didn't bother him but I guess it did this time. I hope he comes out of this.

http://www.reptilesmagazine.com/Rept...dazole-Flagyl/

Went to the vet today and he also thinks this is a reaction to the flagyl, says there is a good chance he can recover. I should know within 1-2 weeks whether or not it its permanent damage.