Do you take your lithium with food? Sometimes that can help with the nausea. But you could also talk to your doctor about it because I don’t think chronic nausea and vomiting is an improvement with your quality of life. Meds should help Improve your quality of life.

First of all you have to take it with food especially on a high dose. Second of all nausea and vomiting can be a sign of lithium toxicity so ask to have your lithium levels checked. See about getting a lower dose if the food doesn’t help or your levels are too high and if it continues after that than try a different mood stabilizer.

Have you had a lithium level check yet? Often times when mine is low or high my body reacts differently

I’d say first step is to get your lithium level checked.