The reason why I asked you about blunt trauma is because it appears your nose is shifted to one side of your face, while the remainder of your facial features appear centralized and quite symmetrical. A layman might think you got punched in the face. Did you lose weight? Sometimes that makes the flaws, especially in one's nose, as well as other facial features appear more prominent.
Tunisia has a better rating for rhinoplasty in comparison to Portugal. Like you mentioned in your first post, it is also cheaper. I do not usually like to make decisions based on price, as you usually get what you pay for, however, the satisfaction rating is higher, which to me makes all the difference. This link might help you to find a surgeon: Compare Nose Reconstruction (Rhinoplasty) prices overseas traveling from the USA
If you know someone who has had a successful rhinoplasty in Tunisia, ask them for their surgeon's name and contact information as well.
Please, make sure they are board certified as well as have a credible reputation. This is difficult to ensure when choosing a surgeon in another country, as you are essentially communicating through e-mail, and doing all your research over the internet. regardless of who you do choose as your surgeon, look at former clients "success" stories, as I have stated in this forum in the past. Also, look at former rhinoplasty recipients of the surgeon that have had similar surgeries, as they had similar before pictures, like yours. Do not settle on the first surgeon. Comparing the work of several skilled individuals can make you change your mind. Remember, you are altering your entire look ... your face. Make educated decisions, have reasonable expectations, and do not be hasty. Good luck, and I hope I have helped you.