wiped out post admission -y?

I was in my local for 12 days on iv antibs for 10 and on 3l o2 until 3 hrs prior to discharge.

Since coming home im feeling totally wiped out- the way you do with flu(but not got other flu symptoms so dont panic!!) i know the infection has cleared as white cell count was back to near my normal.

Im used to feeling tired post admission but this seems to really have hit me big time and im getting very frustrated and down because of it.

Im wondering if a certain amount of this is caused by low sats given that the only time i went above 95% was when on o2 or if there is something else going on(both diabetes and cardiqac probs seem to b under control).

Does anyone have any ideas/ suggestions- thanks