I got my 2nd Moderna shot a few days ago. No nausea or vomiting. I do and did have a pretty sore arm though.
About 22 hours afterward muscle aches, muscle tightness, chills and eventually a fever hit me. I also got a light cough and headache. But I took Tylenol and a very long, cool bath and all of that went away. Tiger balm also helped my arm.
I took a lot of extra vitamin C also the day of the shot and the day after. Which I think likely shortened the tough part for me. Definitely worth it and glad to have that taken care off now, although I guess I won’t be considered fully vaccinated for another 2 weeks. Not too long to wait though, given it’s already been over a year.
ETA; forgot to mention... drinking a ton of extra water and fruit juice helped too. Also for some odd reason it raised my appetite while I was going through all that, which was weird because it’s been very low recently. But I ate and that helped too.