Weight in 1st pregnancy vs second

When I got pregnant with my first I started at 158 pounds ( I'm 5'2) and I got up to 210 pounds. I was very sick with my first, I hurt constantly, heartburn, feet swollen you name it. With this one I'm starting at 118 pounds. I exercise& I eat healthy .... And I don't seem to have any of those crazy symptoms, yet. Do you think weight has anything to do with it? I know every pregnancy is different, I'm just curious if anyone had the same thing??