Breast might not be best?

For all the moms who have fed and had issues what made you choose to tough it out or supplement or even switch to formula?

I just want my baby healthy but with how often he wants to be fed my supply just can’t keep up. I literally feel sick by the middle of the day and it’s getting to the point where I’m gagging, getting dizzy and having hot/cold flashes. I drink tons of water and eat a ton of healthy snacks in between feedings and such but I literally fed like I can’t do this. When is it okay to give up for the sake of you and your baby overall?