You don't need any drugs, nor do you need to do research on drugs.
Look around you for a good body psychotherapist. You simply need to work with your internal mechanisms and become aware of what you are feeling and the location of the origins of those sensations.
This is concentrated work, but you are intense enough to engage in it.
You really need to begin this with a professional, but you can introduce yourself to the idea by simply lying on a flat surface, no pillow, knees up, palms facing upward.
Ask yourself what you are aware of. Feel your whole entire body, be gentle with yourself. Go within. Stay there and remain with it. You will find tensions, pains, movements and runnings, pockets of ache; attend to any body part that seems distressed, for there you are holding emotion, and it needs to move. Rub, gently massage...sometimes heavy pressure is necessary for you to discover the depth of the hurt.
Another human being should apply the pressures, and should hear you describe what you experience. A good professional might really help you with this, he can expedite the process. (If you are a man, it should absolutely be a man.)
Your poor body is overtaxed; you are allowing your energies, which should flow positively and lead you to a life of beauty, to misdirect, collect and hole up, blocking the pathways and causing you to fear other human beings. Other human beings are not there to be feared by you, they exist with you for joyful exchange.
Yoga, T'ai Q'i, Q'i gung, and general meditation habits might help you very much too. For myself, I refer to my a.m. meditation as my "Clearing and Alignment" at the beginning of each day. It has helped me so much -- I am much less fearful, much more self-assured and less concerned about what negativity others might direct toward me. And when they don't smell fear, they don't bite!
Whoever you are, You are Loved. LPSG is probably not the very best place to begin working on your particular issue, but you have shared here -- much respect.
I am a singer, and worked through stage fright issues long, long ago. Now, the stage is my home, I could eat, drink, sleep, and bathe there. When I am onstage, from there I can connect hearts -- mine to theirs and theirs to each other. It's incredibly rewarding and keeps me alive and living. In addition to my solo stuff, I am a choral conductor, and I teach singing, both high school and college levels. I deal with people's fears of exposure and of communicating every day. No drugs, you are well within the range of normal. You've not yet explored yourself much.
You have nothing to be afraid of; but like every one of us, you have memories and experiences informing the way you respond to new stimuli. So go inside and find them, and work them out because your cells are telling you old lies, not the new truth.
All the best. I wish I could give you, right now, the warmest, softest, most reassuring hug you have ever felt -- and I would just hold on for a little while. So just close your eyes and imagine it, it's from me!