Hi there and sorry to hear you feel so rough. I was never on insulin but was heading that way with an hba1c of 10.5 and BG readings usually in the teens and I felt vile and depressed. Anyway to cut the story short I got Byetta (another drug you could think about) on June 9th this year and it has changed my life, I feel so much better and hba1c is now 6.
At my clinic they tend to start patients on Byetta (from what I can see many do well on it) if for some reason they don't get on with it they try Victoza. I think Byetta is a little cheaper so that may be behind the reason. Weight loss on this drug has been great for me and I have lost much of my appetite.
Good luck.