I Am A 72 Yreka Old Woman And Lately I've

I am a 72 Yreka old woman and lately I've been having a bowel problem. I will be constipated and cannot have a bowel movement, but little hard pieces of feces will drop from my rectum the. I will have to rush to the bathroom and a small amount drops out. It happened over the holidays, but it was soft and I had to wear a pad. Why is this happening? I'm so afraid I'll have an accident in public.