Thoughts on using a cane?

I'm an 18 year old and I have AS. In highschool before I got my biologics I had to use a cane to get around because of some pretty bad leg pain. Now in college I've been mostly ok but my back is starting to be uncomfortable and hurt after walking to classes. Do you guys think it's ok to use a cane again or is that too much? I mean it's not like I CAN'T get around without it but at the end of every day my back is killing me and I read online that a cane might help.