Got my first Moderna shot on March 16th, with a little muscle soreness and that's it.
Second shot on April 14th is a different story, first day was fine, second day diarrhea, nausea, fever, muscle aches, 3rd day felt better, 4th and 5th day felt sick again, add in chest cold like symptoms difficulty breathing, today I'm feeling better again. I even got a covid test yesterday just to see if I caught Covid in between shots. People at my church video team tested positive for Covid that I served with.