What options does someone have that has stretch marks that are painful, deep and ugly [miscellaneous]

I gained about 50 pounds in 2 months back around 2012. It is a long story what happened. My body shape is like a lot of northern Europeans: we gain weight mostly in the gut. My legs and buttocks stayed slim. I since late 2012 have had 6 very deep and ugly stretch marks across parts of my lower abdomen. It hurts to wear a belt. It hurts to twist.

I want to get this fixed. Both for the pain and also for the ugly sight of them. What options do I have? Has it been too long? Should I consider surgery to get them removed or laser treatment? What options again will fix both issues?