Emergencies are relative - I've seen plenty of "emergency" appointments at the vets that were nothing of the sort - but the owners were incredibly worried, to them it was an emergency. To us it could have waited until after lunch!
Although titles of posts are better if they are indicative of the topic - "Please help" doesn't give any indication of what it is about. It's changed now though so no problem
Glad that your hamster seems settled down generally - I really wouldn't be worried by one-off bites, especially if you may have provoked them.
Em x