If it fit you back then, it should be close to fitting you now. I still ride the bike I bought 30 years ago. I didn't ride for 10 years, and when I got back on it, it hurt a bit, but I got a more comfortable saddle, and rode a bit, and a bit more, and it got better.

If the saddle you have now isn't comfortable, then that's a good place to start.

I got a Specialized Body Geometry saddle. There are lots of models under that brand, and lots of other brands. Which one is best for you is hard to say. Some people have to try out several before they find the right one, and what's good for one person is torture for another sometimes.