Can you have Pregnancy induced hypertension if you bp is good?

I am almost 25 weeks and have been going to the drs weekly since 19 weeks due to high blood pressure at 19 weeks. Since 19 weeks though my bp has been great. (today it was 120/78). Today she told me I was measuring big (yikes I gained 3 pounds this week but I had mild swelling in my feet) and she is having me get an ultra sound done and sent me over for blood work also. On the paper that I have to give the labs it said "measuring big for date" and "Pregnancy induced Hypertension".

I guess I thought PIH was if you had high blood pressure? And is me measuring big a sign of PIH? Everything I read on the internet doesn't mention measuring big as PIH.