I think your twins are around 12 weeks, yes? This is a huge "wonder week" for them, when their development is going great guns.

Perseverance will probably help - my friend with twins used to go for a big walk about 5pm each night, for an hour or so, so that she got outside for a while and the twins could be in the pram and moving. aApparently this helped her.

Otherwise - please look after yourself. Make sure you get a bit of time for you.