Covid shot + Breastfeeding

I was really hesitant on getting my covid shot because I am still breastfeeding my little one (4 month old girl). Especially since there is no research about how it affects breastfeed babies.

Anyways. I got my second shot yesterday, and I have only been having mild side affects compared to what I have heard from others. I am little worried about the affects on my baby though. About 16 hours after taking the shot and breastfeeding my LO she ended up throwing up a good chunk and has been sleeping majority of the day. She’s not as active as her usual self. She’s not running any fevers and hasn’t been fussy.

I was wondering if any other breastfeeding moms had the similar experiences after taking the shot?