Good morning Sarafina,
Most likely, given the conditions that the hive has gone through recently the lower deep may be empty,
of course the only way to know is to get into it which sounds like that may not be an option at this time.
But if you could get some help and if the lower hive body was found to be some what empty you could take it and set it on top of the brood super (reversing), then feed the girls if required .
Holding off for a few weeks till you get better should not be a problem , bee wise that is, but I would have a friend lift the side of the hive to see how heavy it is........if it is very light I would start feeding, if it is fairly heavy just keep on doing what your doing.....are the bees bringing in pollen ?
Anyway if you have a strong hive your brood pattern may extend down from the super to the hive body below it...that's good. What you are looking for of course is plenty of honey and pollen around the brood area.
What you are looking for in the bottom hive body is a continuation of the brood or frames with just honey...maybe a little pollen. If there is no brood you can move that lower hive body to the top of the stack and feed as required.
Bees tend to feed upwards through the winter so it's good to have plenty of stores above them..........
keep your smoker fuel dry,