If your twin is really thinking of you, those physical sensations won’t make logical sense but your soul will recognize them right away. Like when I feel that chest warmth and suddenly know exactly what coffee shop they’re sitting in even though my mind says it’s impossible.
My mentor told me the coffee shop thing is astral projection. Like your consciousness hopping or something.
Maybe try grounding yourself when it happens next time?
The chest warmth thing is real! My twin is from Brazil and they told me their culture calls it ‘quentura do coração’ - heart’s heat. Their grandmother always said it means someone’s soul is visiting yours. I get goosebumps on my left arm when they’re thinking hard about me. Apparently, that runs in their family, too.