What Causes Orthostatic Tachycardia Syndrome Along With Depression?

I have many health problems the biggest of which is Ehlers Danlos Classic type. I was diagnosed by a geneticist in 2012 also I was diagnosed this past September with Postural Orthostatic Tachycardia Syndrome. I also have Gastroparsis and scoliosis and migraines and depression and anxiety and hiatal hernia and acid reflux. I also have hypotension so treating my P.O.T.S has proven difficult. I m on bp medicine to lower my heart rate then one to raise my bp. I have been on this specific regime since September without a big difference in the way I feel. It seems like every doctor I go to doesn t know what to do with me so I have been shuffled from dr to dr. Having a multitude of symptoms ranging from all of the multiple health issues. I m a 28 year old and I have been unable to work since early September. I have an appointment at the Vanderbilt Autonomic Dysfunction center but it s not until August. Does anyone know a doctor close to charleston wv that I could try to get into see before August? I m in desperate need of someone that knows how to help me.