Wtf do you do when you have a really bad cold or flu in your 3rd trimester? My body aches, feels…

Wtf do you do when you have a really bad cold or flu in your 3rd trimester? My body aches, feels like mucus build up in my neck and head, hurts to swallow, super tired..

And then I see this, so I'm a little freaked... this came up when I searched what is safe to take for girls in their third trimester with the flu...