Monica, you do need to take good care of yourself...not only for you, but for you husband and children. Was your Lyme doctor Lyme Literate doctor? If so, perhaps there is another one by you. Our Lyme forum can help in that area.
Nevertheless, medical care is not perfect. Sometimes things happen that shouldn't but it may never happen again...meaning the blood clot. I've had a pic line in my chest with no problems with blood clots. If this is Lyme acting up, there is something you can do about it. If you ignore it, it will get worse and it will take more time to clear it up. I'm not trying to frighten you. It could very well be fibro, but I know I would want to make sure in hopes I could be feeling better soon.