Might have to have a operation which will leave me unable to move for two weeks?

I find out on Wednesday if I have to have an operation on my foot which will leave me unable to walk or get off the sofa for two weeks..

I'm scared of gaining weight (due to lack of exercise) any ideas on how to not let that happen?
Updates
+1 y
Thankyou for all your answers guys, its really appreciated and helped me put my mind to rest ha ha :)

My mum also said not to worry too much as its only two weeks.

guess I'm just paranoid because its my first ever operation ha ha :)


Thankyou again

x
Might have to have a operation which will leave me unable to move for two weeks?
Post Opinion