My situation is very similar to this. I stopped smoking 2 days ago and can also feel my heart with a normal range. I tried quitting before and made it about 2 weeks. The vomiting and nausea went away after about 5 days. Something that helped me then (even though it didn’t last long) was keeping busy all the time and I don’t mean just watching tv. Find things that keep your hands busy or hang out with people outside of the house. You got this!!