Just needing some reassurance

Al

Hi guys. So I’m currently 19 weeks pregnant.. I am a server and pulled a 10 hour shift yesterday. I would be lying if I said I’ve been feeling great but the second trimester was looking up! Today I woke up and felt like a train hit me. I slept a full 8 hours... but when I woke up I felt like I could have gone back to sleep. I’ve felt sick to the stomach all day like I need to puke, I’m extremely gassy, my head has been pounding on and off all day... just feeling straight up awful. Is this normal? Anything I can do to help myself? I’ve taken Tylenol, and unisom, w/ b6, and gas x, but I also have a two year old that I need to give attention to and I just worry about feeling this awful again. Any advice appreciated!