Your clear coat is blistering and is caused by too thin of a coat of clear. Lack of wax also speeds up the process. Unless you're a good painter, or don't care how well it turns out, take it to a paint shop. I created a tape line on mine, just above the clearance markers and resprayed with a matching color. It was good for another couple of years and started in other spots. It's like a cancer and will grow. If you let it go too long, it will create deep cracks that require sanding to the gelcoat and then use of a special primer.
I had mine done three months ago. It cost $3000.00 to paint all four sides (roofline). Some areas are cheaper, some are higher.