My belly is constantly hard and stony, it often cramps, the baby is ac…

My belly is constantly hard and stony, it often cramps, the baby is active, he pinches and pushes left and right ?, could the belly be cramping because there's not much room? ? I take No-Shpu and Magnes B6 Forte ? I think it's a spasm and training together ??‍♀️ The belly feels like it's about to burst ??? To the doctor on February 2nd only, I'm thinking of going for an additional ultrasound myself, maybe there's not enough oxygen, although I had it 2 weeks ago, everything was normal Could this be NORMAL? On Tuesday will be 36 weeks! On Wednesday I'll go to