Weird twitches to the skin

Miss k ♡♡
It's weird to try to explain this, but for a little while now,I've noticed little twitches I can feel on my skin when touching. And when I feel bubbles sometimes I can see them. Is that the baby? Or just gas/and skin being skin? Kinda seems high up for skin twitching for me being 19 weeks. I'm only asking because I haven't gotten to feel my little one yet :(