I am 23 and I am thoughtless most of the time. Nothing enters my mind, I just see and hear things without much thought. This ultimately lead to my inability to turn my thoughts into words during conversations. This inability has brought countless deep frustrations such as not being able to create meaningful relationship with people. I don't think I have social anxiety because I am generally comfortable being around people; I just can't function right when I am tying to communicate. IIN?

Sounds like this is quite uncomfortable for you.
Before I go any further I'd like to say - I think there are thoughts inside that head of yours, whatever you say, my friend. After all, you conjured up the idea of asking IIN about your issue, and you pondered the notion of social anxiety.
Anyway, I guess it's easier said than done - worries are tough old chestnuts.
I wouldn't say you have anxiety issues; individuals with anxiety usually suffer from panic attacks, chronic worrying, sleep disorders and physical repercussions such as breathlessness and so on.
Meditation experts, Zen buddhists and yogis call a blank frame of mind 'Samadhi' - the ultimate state.
A clear head could be a sign of deep relaxation!
But people may go through this in their life; sometimes I do.
Give it time, and don't fret - as for the relationships, on occasion just relaxing and making sure you don't worry is a cure in itself.
Good luck, and remember - feel free to ask me any questions or advice!
xx
All I got was an image of snoopy with a blank thought bubble.
in this situation you use your heart. but let say about a math question, its mostly all knowledge and logic right? in that situation you use your brain.
in a conversation i believe base on my personal experience, you gotta make your heart and your mind sync.
does that make sense?