Former severe stutterer (M) seeking advice/help/information for my toddler who suddenly started stuttering

Former severe stutterer (M) seeking advice/help/information for my toddler who suddenly started stuttering Hi everyone, I used to be a severe stutterer for a long part of my life, mostly blocks, sometimes repetitions. Growing up, I managed to overcome it, and today I don’t stutter anymore at all. My son is 1 year and 10 months old and has been learning to speak normally. Everything was going great. Then suddenly, (few days ago) he started repeating sounds and having hard blocks on words he used to say easily. Sometimes he holds his breath, blinks a lot, his face becomes very tense, looks down and he really struggles to push the word out. At times he can’t say it, gives up, and just smiles at me. I smile back and keep eye contact. This breaks my heart, because I’ve been exactly there myself. I know how hard this can be, and I really don’t want my son to go through what I went through. I’ve read that toddlers this age often go through phases of disfluency, and we’re planning to see an SLP (next week) But with what I’m seeing, and based on my own experience, I’m afraid this might be more than just a normal phase. I’m trying to do all the right things: staying calm, keeping eye contact, not finishing his words, not giving advice. But honestly, it’s very painful to watch as a parent who has lived through this. Has anyone experienced something similar with their child? How did it turn out? Did it go away on its own? How did speech therapy help? I have so many questions and I’m struggling to put them into words. I’m just looking for some honest experiences and guidance. How can I best help my son?