Help!! tons of pain all day all night.

Im a first time mom with IVF twin boys on the way. Tomorrow starts 3rd trimester.....and the pain yall. Its unbearable. It hurts to stand, sit, walk and even lay down. My belly button is tender to the touch and super painful. I have a sharp pain in my left side. And all my pain has been consistent. No on and off pain just yet. But i am hurting all day every day. Is this something youve experienced while pregnant with twins? Doctor said i may have a umbilical hernia but the other pains I cant even explain. Enough to make me crouch and not be able to walk. Please shed some light if you have experienced this.