feeling sick

Daschelle • Expecting rainbow 🌈 baby on December 22nd! So very excited 💖☺️
Im a FTM , 7wks+2 , have been having increasingly painful lower back pain (I would definitely rate it an 8 right now) & pelvic pressure switching from the right side to the left (thats only about a 5 but its definitely gotten to about an 8). Im very weak and tired especially today. My eyes are moderately swollen. I don't have a fever , or chills , just a moderate headache in the front & pain when swallowing. My first question would be , what can I take to help this at least a little? & should i be worried??