Can I sue malpractice years after it occurred?

I gave birth to my first child via normal delivery. Then after 24 hours, I couldn’t walk. X-ray was done and found out that I have a pelvic separation. It’s like a pelvic fracture and when I was physically checked after giving birth, she had a left clavicle fracture at birth. During the delivery, it wasn’t found out, only after my epidural subside that’s when the pain on my pelvic was 10/10 that I couldn’t walk at all. I had a physical therapy done almost 6 months and it was healed without any surgery done but the pain until now is like chronic. It triggers every time I do exercise. If I wear high heels, I couldn’t tolerate as the pain radiates to my pelvic bones. I did file a grievance back in year 2014 but I was feeling depressed and decided to ignore the issue because every time I think of it, I feel depressed and just go on with life. Then I got pregnant with my second child but with same hospital and requested for a cesarean section delivery as I don’t want to experience my previous pregnancy. I had no issues with my second delivery but during my pregnancy, it was hard. I had to stop working during my eighth month as the pelvic pain is worsening. The pain is on and off. Now when I enrolled to the gym class, the pain is still there on and off once triggered after what happened in 2014. My daily activities that I used to is different and limited. I cannot use high heels as compared to my normal life. I cannot tolerate gym class although x-ray results said it was healed but it became chronic.