I’m on Ven, been on 112.5mg for a while now. I titrated up slowly, started on 12.5mg and increased by the same each week. I felt very nauseous for a few months. I know its the medication as I’m not prone to nausea even when I get a migraine.
The SNRI class of meds are well known for causing nausea. Its supposed to get better as you get used to it but I would say it took a good 5 months before I stopped noticing it. Now its not an issue any longer thankfully. Hope it gets better for you.