I have a similar level of serotonin, and the last time I had a doc who was willing to test the level they told me it didn't look like I was producing any. When you have none to work with, ssri's don't do a thing for you. They have the same amount of efficacy as tick tacks for me. It can be a cause of digestive, sleep, and pain issues, or it can be caused by chronic issues too. They go hand in hand. I hope you can get that stuff figured out with your doc. I know it sucks.