Hi, sounds to me like good old common stage fright. Lots of people experience this phenomenon when they have to stand in front of others, especially if they tend to feel self conscious. Only have to look at the number of people that sweat on stage, yet it's a freezing cold night - or worse those that sweat when they're bridesmades walking down the aisle. These events may be more catastrophic than yours - but it all depends on the nervous energy of the person and the anxiety related to public places.
Hi
Welcome to the MedHelp forum!
Abnormal sensations of any kind are called paresthesias. There are many other causes of this nerve disorder including diabetes, hypothyroidism, chronic involvement of liver or kidney, chronic alcohol use, multiple sclerosis, etc. Hypoparathyroidism too should be looked into apart from hypothyroidism. Neck strain, spondylotic changes in cervical vertebrae, bone disease or bad posture should be looked into. Nerve infections as in lyme’s disease too should be investigated.
Since I cannot examine you and know other related conditions you may be having, nor is a detailed history possible on net, I have listed the various possibilities that should be looked into. Please consult your PCP for primary examination followed by proper referral. Take care!