Part 1 of this series covered Challenges in Diagnosing Orthostatic Intolerance. I apologize for the long delay in writing this second part on Challenges in Treating OI - a bad crash last fall left me with only minimal writing energy for several months...but here it is now! If you missed the first part or are new to the topic of Orthostatic Intolerance (OI), go back and read Part 1 and/or my overview post on Orthostatic Intolerance and ME/CFS. The bottom line is that if you have ME/CFS (and…