only time can tell some if they ave been in diabetic ketonic acidosis ,( the dangerusly high ketosis poisoning kind ) the body switch to us the bodys muscles for energy.. and then one can loose a significantly big amount of musclemas..
there is one way back to get stregth back in all ones muscles (and hopefuly the heart has not been damaged) by weight lifting and resistance training..
so good idea to go to some form of "body" building or fitness or do it at home...