Bre
I know this may sound crazy, but I had the same symptoms..still do sometimes, but they ran all of the tests on me and finally determined that it was my blood sugar. When your blood sugar drops it causes weakness, and light headedness. Often I got severe headaches that felt like migraines as well. I have been able to control it partially through diet. Your's may be something more serious but just thought I'd offer what helped me. Hope that everything gets better for you. -Bre