i've been waking up like this- also sometimes throughout night, also palpitations at night.
damn certain it's utrogestan- sorry not much help but can commiserate!
i only take 100mg vaginally for 1 week cant do any more- then couple days later period, then feel really depressed- that's where i'm at at present- but yes, i do recognise the waking up gaspingand the thumping chest.
i'm going to ask for something else as it puts me back hugely- have no life .
are you feeling any better now? it will pass but my inexpert opinion is that it's definitely the utrogestan.
hopeyou're ok.