Post partum

I’m 3 months post partum and I never went to my 6 week appointment because that’s when this corona virus started getting noticed so I was scared to leave the house. I’ve been fine stopped bleeding and everything. Yesterday I had sex a couple times for the first time & at around 6 in the morning I woke up to feed the baby and I was SO hot like sweating all over and nauseous.. should I be concerned or is this just hormones