Brit,
i am so sorry to hear that you are struggling with this at such a very young age. I am 37 and have two teenage daughters. I had very low platelets when I was 12 or so, the doctors were unsure of the cause. I was always very tired and beleive I have had lupus since then. I think mine was triggered from a serious sunburn when I was away at camp. I really don't know if pregnancy could have triggered yours, but I hope that you get the assistance you need. I am always tired in the afternoons and have to take naps everyday. I wish you the best.
Redwolf