trulicity brain fog

Is anyone on Trulicity? I spoke to my nurse in November and we talked about going on it. The more I read the more I freak out about it. I'm mainly worried about the vomiting, I have a fear of it.

I have been on Trulicity for almost a year. I feel like I look so much older and I suffer with brain fog. Is anyone else experiencing this? Also, I have been on Metformin 1,000 mg per day and was prescribed this at the same time so it's possible it could be the metformin and not the Trulicity...