Ladies? Been so sick lately-what could be the cause?

You need to get a complete blood work done. You will get a clear picture of what is going on with you out of it. Now, at this point it is very hard to say, but it could be a vitamin deficiency or weakened immune system. I would check your liver and kidneys just in case. You need to see a medical doctor ASAP. If you felt that poorly for the last month or so and your family doctor is not able to tell you what is wrong, why aren't you looking for someone who could? Please, take care of yourself, sweetheart! I will keep you in my prayers.