I've talked to around 30 of my colleagues who have gotten the vaccine and none have had as rough as a time as you have had. (Most got Pfizer, but at least 5 got Moderna.)

One person had "ringing in her ears' for about 18 hours. (She's a legit weirdo though, she claims to have had COVID twice already, but she only had one positive test.)

About 2/3 had some degree of soreness in their arm.

About 1/3 had slight chills that went away within a day.

I know that 2 of the people have had severe allergic reactions to previous vaccines - one was caused by an interaction with a medication she was taking, the other was spontaneous. Neither of them had any significant reaction or pain to this vaccine (both got Pfizer.)

I'm the only one who admitted to diarrhea. I also had some muscle aches - very minor and possibly unrelated.

I hope your second shot is less painful.