Here are a few things to help you get some pep/energy back into your body:
1. Vitamin B-12
2. Vitamin B-complex
3. Load up on potassium, which means drinking orange juice and eating kiwi. Bananas also have potassium, but they are high in starch as well as calories. Orange juice acts as a diaretic.
4. Set your mind on getting up and moving around. Make your mind have strong will power to exercise. Look at exercise as your playtime.
5. Set a specific time that you will exercise. This time must be convenient for you without any distractions. It might be while the family is asleep or after dinner or in the morning.
I know it's hard to get going on a daily exercise routine, especially when you feel so tired out. The truth is that once you get started; the exercise will actually give you more energy, help you loose weight, keep you from getting depressed, and up your immune system so you'll be sick less.
Now, how do you keep your family from being sick all the time? Get them moving and exercising...Have them wash hands frequently...Have them eat more fruit and fruit drinks...keep your house hold dust and pollutants down...get them outside to play or do chores...open the windows at least once per week....and play with the dog/cat more.
Hope this helps.