Heavy limbs, nausea. Concern?

Last night i had a horribly restless sleep. Tossing turning flipping nd flopping waking every hour it seemed. Now this morning my arms and legs feel weighed down and I'm nauseous🤮. I don't feel tired tho? Baby is sitting Much lower than a few days ago and i constantly feel like i need to poo, even tho I'm sure i don't actually😳. Anyone have any ideas as to what's causing this? Also baby is still moving around like shes on the floor at the Olympics gymnastics meet 🤦‍♀️