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You should not still be seeing any effects from the sedative at this late a date.
I suggest that you schedule a visit with the vet to find out what's going on.
This could be something easy to fix like a parasite problem.
Unfortunately, I would feel led to agree with the vet and say that the two are not related.
I wish that I could tell you something to make you feel better but I just don't think that you would still be seeing the effects of anesthesia 2 weeks later.
It sounds like you are a great pet owner and your dog is lucky to have you.