Asthma: do breathing treatments and make sure you take the medicanen you need for it .
Diabetes: dont eat to much sugar and take your medacine when you need to take it.
Cancer: take care of yourself eat what is good for you and exercise and drink plenty of water. and do physical things that are good for you too like riding bikes or reading books
First, because you need to be careful of what you are eating and should not eat.
Second, if you don't care about what you eating it could be really dangerous.
Its likely to be a fracture but muscle failure is also possible I think it will be a fracture most likely I may be wrong but I hope I gave a little help