First Ultrasound

Hi po! I am 22 weeks pregnant with our first baby and so happy and grateful coz it's a healthy bb Boy ? however bit worried kac 'polyhydramnios" or more water inside dw it could be GDM din aq. Is this normal during pregnancy? PS. will ask po about this to OB on my next visit. Thanks po in advance sa comments/advices. God bless us momshies! ?