I liked the creative aspect of the surgeries, the interdisciplinary work, and that it’s not limited to just one area of the body. It wasn't just about taking something out of the body, but about reshaping and reforming it.
That's why I enjoy being a plastic surgeon. I find that almost every case is different and requires constant thinking and innovation. I continue to learn new ways to do procedures even after many years of practice.
I completed a general surgery residency prior to doing plastics, and I enventually found general surgery repetitive. Of course, any specialty can seem boring if you're not interested in the fine points of the field. I didn't entertain any thoughts of being a plastic surgeon until I was almost done with my general surgery residency, and I consider myself very fortunate to have stumbled on this as a career choice.
I work in a large multispecialty group, and do 100% reconstructive surgery, so my experience may not be typical for a plastic surgeon. While I have to be on call for trauma, my on call experience is much easier than that of the general and orthopedic surgeons. Those guys work very hard when they are on call. I almost never have to go in at night or on the weekends. Most facial fractures or tendon and nerve lacerations can be seen in the office later in the week. But general surgeons and orthopods seem to be up all night when they're on call. Of course, if I did replants and other microsurgery, then I would work harder at night.
I think OB /Gyn is one of those fields that you should only do if there's nothing else you want to do.
However, if I were starting over again, I would consider either orthopedic surgery, or dermatology with a Mohs fellowship. I have a hand fellowship and do a lot of hand surgery, so an ortho residency followed by a hand fellowship would put me in essentially the same practice, but with a shorter residency and a higher salary. The orthopods seem to be a very happy bunch. And, your description of whay you like about plastic surgery applies perfectly to orthopedics as well. ( I had originally considered ortho but changed my mind, for reasons that, in retrospect, were not very good ) . If you decided later that you wanted either to work harder or make even more money, you could do spine surgery.
My other major interest in recent years has been facial reconstruction following Mohs surgery, ( i.e. skin cancer resections by dermatology specialists. They usually repair the defects themselves, but if the defect is too large or complex for them, they refer to plastic surgery ). That's what I like doing most of all, and again, based on your interests, that might be a great option. That also has a shorter residency path, a much easier lifestyle, and a much higher salary than plastic surgery or ortho. And of course, you can't beat that lifestyle. However, you do have to spend a lot of time under a microscope, and the Mohs fellowships might be competitive. I don't know.
Good luck!