TL;DR - i shake when i talk to her even when im not nervous. Need help with this problem( please read to understand).

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So i've been studying and learning game since march of this year( beginning of the pandemic). I've learnt a lot about game theory, verbal game, text game, day game, group theory and even female nature. I won't say i know it all but i studied hard because i had that drive and i've always not been good with women since i was overweight ( Now i'm quite muscular). So i'd say i know more than the average guy but not the best. i have pretty good text game and verbal game ( those are my perks) So that makes me a good conversationalist since i've been getting a lot of positive responses about me " knowing how to hold a convo" or "knowing what to say at the right time" or even my storytelling. Now that i've started making more approaches, i open pretty well and i say the right things but for some reason my face starts to twitch more specifically my upper lip and it disrupts the flow of my speech sometimes but i try to hide it. No don't worry the girl can't actually see it i have a mask on. This has never happened to me even when i made approaches back when i never knew anything about game. I'm aware that knowing theory and application is different and i DO apply what i learn, but this lip twitching is getting on my nerves. Lastly to make a disclaimer: Deep down i always have good intentions. I don't date multiple women but i have a lot of them as female friends ( even some of them told me they liked me) i always talk to one girl at a time. I can't really keep up with the multiple dating thing at least i have preselection social proof on my back. Does anyone know what causes the twitching? How to fix it? Progressions? etc