Do your baby kicks hurt?

Didnt have this with my first but this baby is kicking me so hard, it hurts. I even see an elbow or knee poke out and move. My gyn prescribed magnesium 2x a day from 16 weeks because the baby was moving a lot. But with GD, i kind of lose track of all the things i have to pay attention to and have thus only managed 1 pill per day for the last 2 weeks. Am thinking this is why baby stopped moving less. Damn it hurts so bad i want to take 3 tablets per day. I had a csection with my first 3 years ago and i worry about my uterus being ripped apart. Thank God i did the 2 year wait.