Thanks for the help Vaulters!
The problem is you dont get nearly as many side quests after completing the main quest.
If you havent already just keep exploring around and you should find some.
If nothing else just create a new character and play a different way, and you should notice many more side quests you didnt do the first time.
There are tons of quest just listen to NPC when they speak between each other or to you when u pass by, the normally give u a location with quest or a NPC to talk to. Those quest go to miscellaneous part of the quest log.