I think my nose is shape like a pig. What treatment would you recommend? (photos)

I think you are being too hard on yourself, as you are obviously nothing like a pig shape nose! You do have a wide base to your nostrils as you are aware. I would agree with my colleagues but would add that it is best to shape your tip as well as your nostrils i.e., a tip rhinoplasty, and, when examined possibly a rhinoplasty, to control the rest of you nose..to achieve a balanced result.  The reason is simple. When you change the width of your nose, the tip will move,  and sometimes result in being higher...therefore is is best to have control as a surgeon to give you your best result. You can demonstated this yourself by pinching your nose and moving the nostrils inward! Hope this helps.