Im a bit puzzled,Im level 33,a bit of a goody two shoes and currently concentrating on clearing dungeons with Word of Power walls in them.Due to this Ive acumulated a lot of enchanted items that I want to de-enchant.Trouble is,when I enter Dragonsreach to use the jarls wizards equipment Im attacked on sight.WTF?!
I honestly dont know what Ive done to p*ss them off.Any ideas? (Serious answers only please )

Anybody?

are you a vampire? that would upset the townfolks, one of the undead running about

The obvious question, did you steal or kill anyone previous in this city?. Just get in there with weapon drawn, then sheath your sword or whatever weapon and wait for dialogue box to open suggesting gold payment or jail time.

Is it just in Dragonsreach, or everywhere? if so, you should check the active effects for level 4 Vampirism.

Don't worry...I'm was right there with you on the getting attacked for no reason in Whiterun. I had no bounties and killed/attacked no one there, but right after I killed Parthurnax or whatever and went to town to sell...Ulfric Battle-Born kept attacking me for no reason. I had to reload an older save to fix this problem. Did the quest to kill Parth again and had no problem going in.