Dear Welcome to HCM We understand your concerns I went through your description. You have speech difficulty and there is no medical problem which can be explained by doctors. Is it stammering? Is there any damage to vocal chords? These things can be determined if you visit a speech pathologist. Your problem might be solved technically upto some extent by a speech therapist. Do consult them for further advice. Hope this clears your doubts. Available for further clarifications. Good luck.