Don't know what exactly the problem is. Let me explain the whole. When i speak small sentences then i speak very fluently without any problem. But when i try to speak long sentences then sometimes i stammer. apart from this sometimes when speak, mistakenly i speak other work then the actual work i was trying to speak. when i speak my mother tongue then the problem is very less i.e. punjabi. but in other languages like hindi and english is more then that. I am a software developer and according to my surroundings i am very intelligent. i can solve any issue in my work very quickly. but Due to this i am loosing confidence in public speaking. Please suggest some treatment.