Hello~It sounds like a muscle spasm to me. This may sound weird, but try soaking in a warm bath with Epsom salts, this may relax the muscles and the twitching will stop.
Ironic man. I swear I had this same thing a week or so ago myself. I read mostly about diaphragm spasms. Not hiccups but that it can still cause this. for me it went away. I'd monitor it. How long has it been happening?