i have been having episodes of weakness lightheaded very tired and have had many blood tests and a couple heart tests over the past 3 months. All have come back as okay. Only a little high on Lymphocytes Relative and BUN. i have been treated as dehydrated 3 times.The last few weeks i have been having tiny white puss filled bumps on my face. Have been checked for stroke because i had an episode at the hosp after a test then they took me to the emergency room. Do you know anything I could ask my doctor to look for?