funny symptoms ?

i noticed the other day i started to have some light nausea. i could feel it in the middle of my chest

fast forward a few days , i still have the nausea but now i’m extremely tired. like i want to and can sleep all day and all night like nothing

now on top of those symptoms i’m having on and off lower back pain and it’s quite uncomfortable

i feel very weird. baby’s moving. got a call the other day saying my scans came back completely normal but i just feel off

i’ll be 27 weeks friday

is this normal ?