What I need is a SMACK!

For some god forsaken reason my mouth seems to seal itself shut wen it should actually be aiding me as the source of constant yapping. but nnnnnnooooooooo. wen the situation arises I find myself at a loss of words.dumbstruck.shy.smiling like a dork. it happens OFTEN. in fact, way too often for my liking. and its usually in the vicinity of unfamiliar ppl, guests, or any other outsider. male or female. i dono y. some friends and family members find it hard to shut me up for a complete minute and yet with strangers...sigh! I call it my 'speechless syndrome'. i leave ppl with the impression that I am aloof, distant, detached, stand-offish, cold and unfriendly. But I'm not:(. I'm really not. I'm not an introvert either. far from it actually. my family harasses me about my 'speechless syndrome' cuz they know the vociferous person I really am. the cause for the syndrome could be my ever present self-consciousness, rendering me mute and helpless in vital social interactions. i have a plan to overcome it. but it hasn't been put into action as yet. pray4me. o_O