Hi, Donna,
Don't despair! There are other alternatives out there, drugs in the same family as Victoza, but which you may well tolerate better. When I passed the point at which maximum doses of Metformin and Gliclazide were failing to control my BG, I was put on Byetta (one of these drugs in the same family as Victoza). I had a terrible time with it (don't get me started - you don't want to know all the gory details!); so they switched me onto Victoza, and after a couple of weeks I found I could tolerate it, and now its just routine and side effects have completely subsided. There is every chance that Byetta will work for you where Victoza hasn't... talk it over with the team. (Incidentally, Byetta has to be injected twice a day, but there is another derivative, Bydureon, I think, that only has to be injected once a week.)
So don't give up yet. Chin up, hang in there, I'm sure they'll get you sorted, and all this will become just a horrible memory.