Girls, hi! I'm at week 20-21 of pregnancy and my belly is hard, there'…

Girls, hi! I'm at week 20-21 of pregnancy and my belly is hard, there's pain in my right side, and my lower abdomen feels pulled. I went for an ultrasound about 10 days ago and they said I have toxemia. They sent me to see a doctor, who prescribed me some pills and suppositories (name not provided). I finished the treatment but my lower abdomen still feels pulled and sometimes my belly is hard. The baby is very active. I'm sitting here worrying, is this normal?