Why did a verticle red line appear above and below my belly button after tummy tuck? (photos)

I had a TT 8 days ago. I had my first compression garment removed and I could see there was very thin tight skin above and below my naval that appeared slightly blue in color. The next day it looked dark and red and even had very fine scabs. I’m worried it’s a huge stretch mark or the color won’t fade. I don’t see many other people asking about this. I’m very concerned. Perhaps I stood too straight?