i've been getting this too, probably since about the six month mark - or where i stopped putting on boy mode to go into public.
i think in my case they're probably related since they tend to only happen when i am somewhere busy or on public transport alone.
hoping against hope that side of things gets better when i perceive myself to pass better.....
i've been getting health anxiety too, for the first time in my life, and i don't understand it.
i never even used to notice twinges but now they can throw off my whole day and it freaks me right out