Asking for an induction

Before I get the induction is awful speech, I was induced with my first son and had him in only 6 hours with no epidural and 25 min of pushing. So I can handle an induction. I just really want to be induced at 39 weeks because I'm having problems breathing and I get dizzy if I'm standing up and speaking with someone. My bmi is almost 40 so I am considered very obese. I also have developed plantar fasciitis in my left foot from all the weight and strain which makes walking very hard. I had to be on oxygen during my delivery with my first son and I think I'll need it again even in my labor because I can't breathe now as it is. My son has consistently been measuring in the 65th percentile and at the 36 week ultrasound he was already practicing breathing. I go for my 37 week appointment and will be bringing up the induction to my dr then. Hopefully she will be open to the idea because I really am not doing too good.