Since I was 13 years old I experienced body shaking and head shaking when I was around attractive people or when someone made me feel intimidated. At that time I didn't pay too much attention to it so since that I just avoid eye contact with people or social gatherings to not experience that. I am 22yo now and I am so tired of not being able to hang out with someone I like bc I cannot look at them at the eyes without my head shaking. Or eat with them bc my hands start shaking while I hold the fork. Sometimes when I feel watched by someone my head starts shaking and I cannot stop it. I am so ashamed about it and I really want to be able to socialize normally and feel comfortable hanging out with people or keep eye contact with my crush. 
I have never met anyone that experienced the same thing as me and that really makes me feel worst and understandable. Has someone had the same problem? If so, how are you dealing with it? 
The way I avoid it is saying I feel cold hahaha and sometimes taking deep breaths help:)