My wife went through something similar with her blood test for upcoming day-surgery. We'd gone through a cancer scare years before, ended up not being cancerous) but the seriousness in a medical secretary's call to come see the doctor as something has been found in the tests. Needless to say it ended up her being iron deficient. Doctor prescribed her iron pills and the fatique she used to feel went away. My Dad was told to eat more red meat at the age of 82 to build up his iron level. Alex take this as a sign, go see your Doctor, run a few tests just to make sure that everything is ok. perhaps you're suffering the same as my wife (except for her plumbing problems, that is ). You're probably run ragged taking care of Ann. You should realize though, that to take care of your wife you must take care of yourself. I feel everything will be alright.