Junglemum, its frustrating isnt it! Never had it with the first few babies, was worse last baby, and im getting them again with this baby as well, i dont even have to be doing anything, and my heart feels like it is jumping outta my skin, and i only ever get it during pregnancy.
They sent me for all the usual tests when it first happened, but babies later im so used to it now lol

Possums, def keep an eye on though and mention it at ur next app, jic